crop-chem-docs/corpus/epa_ppls/5905-615.md

# Omni Brand Ethephon 2 lb.

- EPA Reg No: **5905-615**
- Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP
- Signal word: Danger
- Active ingredients: Ethephon (21.7%)
- Label accepted: 2025-06-12
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005905-00615-20250612.pdf

---
June 12, 2025 
 
Jayne Walz 
Director of Registration 
Registration Department 
Helena Agri-Enterprises, LLC 
225 Schilling Blvd, Suite 300 
Collierville, TN 38117 
 
Subject: Label Amendment - Registration Review Mitigation for Ethephon 
 Product Name: Omni Brand Ethephon 2lb. 
 EPA Registration Number:5905-615 
 Application Date: 7/22/21 
Decision Number:577310 
Case Number: 00480633 
 
Dear Jayne Walz, 
 
The Agency, in accordance with the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), 
as amended, has completed reviewing all the information submitted with your application to 
support the Registration Review of the above referenced product in connection with the 
Ethephon Interim Decision, and has concluded that your submission is acceptable. The label 
referred to above, submitted in connection with registration under FIFRA, as amended, is 
acceptable. 
 
Should you wish to add/retain a reference to the company’s website on your label, then please 
be aware that the website becomes labeling under the Federal Insecticide, Fungicide, and 
Rodenticide Act and is subject to review by the Agency. If the website is false or misleading, the 
product would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 
40 CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In 
addition, regardless of whether a website is referenced on your product’s label, claims made on 
the website may not substantially differ from those claims approved through the registration 
process. Therefore, should the Agency find or if it is brought to our attention that a website 
contains false or misleading statements or claims substantially differing from the EPA approved 
registration, the website will be referred to the EPA’s Office of Enforcement and Compliance 
Assurance.

Page 2 of 2 
EPA Reg. No. 5905-615 
Decision No. 577310 
 
A stamped copy of your labeling is enclosed for your records. This labeling supersedes 
all previously accepted labeling and must be used at your next label printing. You must 
submit one copy of the final printed labeling before you release the product for 
shipment with the new labeling. In accordance with 40 CFR 152.130(c), you may 
distribute or sell this product under the previously approved labeling for 12 months 
from the date of this letter. After 12 months, you may only distribute or sell this 
product if it bears this new revised labeling or subsequently approved labeling. “To 
distribute or sell” is defined under FIFRA section 2(gg) and its implementing regulation 
at 40 CFR 152.3. 
 
If you have any questions about this letter, please contact Samantha Thomas by phone at 202-
566-2368, or via email at thomas.samantha@epa.gov. 
 
 
 Sincerely, 
 
Cathryn Britton 
Chief, Risk Management and Implementation 
Branch V 
Pesticide Re-evaluation Division (7508M) 
Office of Pesticide Programs 
 
 
ENCLOSURE: Stamped label

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 1
OMNI BRAND ETHEPHON 2 LB
PLANT REGULATOR
For Commercial or Agricultural Use Only
Not for Residential Use
For use on Apples, Blackberries, Cantaloupes, Cherries, Grapes, Peppers, Pineapple, Sugarcane (Hawaii only), Tobacco, 
Tomatoes, Walnuts and Turf (Golf Course use only). Also, for the removal of Dwarf Mistletoe in Ornamental Conifers and 
Leafy Mistletoe in Ornamental Deciduous Trees and for the elimination of undesira ble fruit on Ornamental Apple, Carob, 
Crabapple, and Olive trees, and for minimizing lodging in Barley and Wheat. 
[For Use on Cotton as a Harvest Aid] [Cotton Harvest Aid]
ACTIVE INGREDIENT:
Ethephon [(2-chloroethyl) phosphonic acid]* .....……………………………………………………… 21.7%
INERT INGREDIENTS: ...............………………………………………………………….................... 78.3%
TOTAL: .................…………………………………………………………………........................ 100.0%
*Contains 2 pounds ethephon per gallon
KEEP OUT OF REACH OF CHILDREN
DANGER / PELIGRO
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle. (If you do not understand the label, find 
someone to explain it to you in detail.)
See inside of booklet for additional Directions for Use and Precautionary Statements
FIRST AID
IF IN EYES x Hold eye open and rinse slowly and gently with water for 15-20 minutes.
x Remove contact lenses, if present, after the first 5 minutes then continue rinsing eyes.
x Call a poison control center or doctor for treatment advice
IF ON SKIN OR 
CLOTHING
x Take off contaminated clothing.
x Rinse skin immediately with plenty of water for 15-20 minutes. 
x Call a poison control center or doctor for treatment advice.
IF SWALLOWED x Call a poison control center or doctor immediately for treatment advice.
x Have person sip a glass of water if able to swallow.
x Do not induce vomiting unless told to do so by the poison control center or doctor.
x Do not give anything by mouth to an unconscious person.
IF INHALED x Move person to fresh air.
x If person is not breathing, call 911 or an ambulance, and then give artificial respiration, preferably mouth 
to mouth if possible.
x Call a poison control center or doctor for further treatment advice.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor, or going for treatment.
FOR 24-HOUR CHEMICAL EMERGENCY: CALL CHEMTREC: 1-800-424-9300.
NOTE TO PHYSICIAN: Probable mucosal damage may contraindicate the use of gastric lavage. Treat symptomatically, as there is 
no specific antidote. Additionally, patient may have been exposed to materials other than this product.
This product is an acid; therefore, it is contraindicated to attempt to neutralize it with alkaline materials. Gastric lavage should be 
undertaken with care to victims of overexposure by ingestion, given the potential for esophageal or stomach perforation.
Due to a potential for pulmonary edema, any patients that have had severe exposure to this product should be kept under medical 
observation for up to 72 hours.
EPA Reg. No. 5905-615
EPA Est. No. __________________
AD XXXXXX
NET CONTENTS: ______________
Manufactured For:
Helena Agri-Enterprises, LLC 
225 Schilling Boulevard, Suite 300
Collierville, TN 38017
06/12/2025
5905-615

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 2 
PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
DANGER: Causes irreversible eye damage and skin burns. Harmful if swallowed or absorbed through skin. Do not get in eyes on skin 
or on clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, or using tobacco. 
Remove and wash contaminated clothing before reuse. 
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
Applicators and other handlers must wear: 
x coveralls over long-sleeved shirt and long pants 
x chemical resistant gloves made of any waterproof material such as polyvinyl chloride, nitrile rubber, or butyl rubber gloves 
x socks and chemical resistant footwear 
x protective eyewear (goggles, face shield, or safety glasses). 
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets the requirements listed in the Worker Prote ction 
Standard (WPS) for agricultural pesticides [40 CFR 170.240(d) (4-6 )], the handler PPE requirements may be reduced or modified a s 
specified in the WPS. 
Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this product's concentrate. Do not 
reuse them. Follow manufacturer's instructions for cleaning/maintain ing PPE. If no such instructions for washables exist, use d etergent 
and hot water. Keep and wash PPE separately from other laundry 
 
USER SAFETY RECOMMENDATIONS 
Users should wash hands before eating, drinki ng, chewing gum, using tobacco or using the toilet. Users should remove clothing/P PE 
immediately if pesticide gets inside. Then wash body thoroughly and put on clean clothing. Users should remove PPE immediately after 
handling this product. As soon as possible, wash thoroughly and change into clean clothing. Wash the outside of gloves before removing. 
ENVIRONMENTAL HAZARDS 
Do not apply directly to water, or to areas where surface water is present or to intertidal areas below the mean high water mar k. Do not 
contaminate water when disposing of equipment washwaters. 
IMPORTANT: Use of Omni Brand Ethephon 2 lb other than as described on this label is prohibited. Do not exceed the rate of Omni 
Brand Ethephon 2 lb per acre per year indicated on this label. 
NON-TARGET ORGANISM ADVISORY STATEMENT: This product is toxic to plants and may adversely impact the forage and habitat 
of non-target organisms, including pollinators, in areas adjacent to the treated site. Protect the forage and habitat of non-target organisms 
by following label directions intended to minimize spray drift. 
DIRECTIONS FOR USE 
IT IS A VIOLATION OF FEDERAL LAW TO USE THIS PRODUCT IN A MANNER INCONSISTENT WITH ITS LABELING. READ ENTIRE 
LABEL BEFORE USING THIS PRODUCT. 
Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may 
be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pes ticide 
regulations. 
Do not contaminate water used for irrigation or domestic purposes. 
Detrimental changes to plant growth, reduced yields, and plant injury may result from spray drift of this product to nearby crops and thus 
should be avoided. 
Do not plant another crop within 30 days after treatment. 
Do not apply Omni Brand Ethephon 2 lb through any type of irrigation system. 
 
SPRAY DRIFT 
Aerial Applications: 
x Do not release spray at a height greater than 10 feet above the vegetative canopy, unless a greater application height is 
necessary for pilot safety. 
x For all applications, applicators are required to use a fine to medium or coarser droplet size (ASABE S641). 
x The boom length must not exceed 65% of the wingspan for ai rplanes or 75% of the rotor blade diameter for helicopters. 
x Applicators must use ½ swath displacement upwind at the downwind edge of the field. 
x Nozzles must be oriented so the spray is directed toward the back of the aircraft. 
x Do not apply when wind speeds exceed 10 miles per hour at the application site. 
x Do not apply during temperature inversions. 
 
Ground Boom Applications: 
x Apply with the nozzle height recommended by the manufacturer, but no more than 3 feet above the ground or crop canopy. 
x For all applications, applicators are required to use a fine to medium or coarser droplet size (ASAE S572). 
x Do not apply when wind speeds exceed 10 miles per hour at the application site. 
x Do not apply during temperature inversions.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 3 
SPRAY DRIFT ADVISORIES 
 
Boom-less Ground Applications: 
Setting nozzles at the lowest effective height will help to reduce the potential for spray drift. 
 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS. 
 
IMPORTANCE OF DROPLET SIZE 
An effective way to reduce spray drift is to apply large droplets. Use the largest droplets that provide target pest control. While applying 
larger droplets will reduce spray drift, the potential for drift will be greater if applications are made improperly or under unfavorable 
environmental conditions. 
 
Controlling Droplet Size – Ground Boom 
• Volume - Increasing the spray volume so that larger droplets are produced will reduce spray drift. Use the highest practical 
 spray volume for the application. If a greater spray volume is needed, consider using a nozzle with a higher flow rate. 
• Pressure - Use the lowest spray pressure recommended for the nozzle to produce the target spray volume and droplet size. 
• Spray Nozzle - Use a spray nozzle that is designed for the intended application. Consider using nozzles designed to reduce 
 drift. 
 
Controlling Droplet Size – Aircraft 
• Adjust Nozzles - Follow nozzle manufacturers recommendations for setting up nozzles. Generally, to reduce fine droplets, 
 nozzles should be oriented parallel with the airflow in flight. 
 
BOOM HEIGHT – Ground Boom 
For ground equipment, the boom should remain level with the crop and have minimal bounce. 
 
RELEASE HEIGHT - Aircraft 
Higher release heights increase the potential for spray drift. 
 
SHIELDED SPRAYERS 
Shielding the boom or individual nozzles can reduce spray drift. Consider using shielded sprayers. Verify that the shields are not 
interfering with the uniform deposition of the spray on the target area. 
 
TEMPERATURE AND HUMIDITY 
When making applications in hot and dry conditions, use larger droplets to reduce effects of evaporation. 
 
TEMPERATURE INVERSIONS 
Drift potential is high during a temperature inversion. Temperature inversions are characterized by increasing temperature with altitude 
and are common on nights with limited cloud cover and light to no wind. The presence of an inversion can be indicated by ground fog or 
by the movement of smoke from a ground source or an aircraft smoke generator. Smoke that layers and moves laterally in a 
concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates 
good vertical air mixing. Avoid applications during temperature inversions. 
 
WIND 
Drift potential generally increases with wind speed. AVOID APPLICATIONS DURING GUSTY WIND CONDITIONS. 
Applicators need to be familiar with local wind patterns and terrain that could affect spray drift. 
 
AGRICULTURAL USE REQUIREMENTS 
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This standard contains 
requirements for the protection of agricultural workers on far ms, forests, nurseries, and greenhouses, and handlers of agricult ural 
pesticides. It contains requirements for training, decontam ination, notification, and emergency assistance. It also contains specific 
instructions and exceptions pertaining to the statements on this label about personal protective equipment (PPE), notification to workers, 
and restricted-entry intervals. The requirements in this box only apply to uses of this product that are covered by the Worker Protection 
Standard. 
Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 48 ho urs. The REI is 72 hours in areas 
where average rainfall is less than 25 inches per year. 
PPE required for early entry to treated areas that is permitted un der the Worker Protection Standard and that involves contact with 
anything that has been treated such as plants, soil or water is coveralls over long-sleeved shirt and long pants, chemical resistant gloves 
made of any waterproof material such as Nitrile or Butyl rubber, chemical resistant footwear plus socks, protective eyewear, and 
chemical-resistant headgear for overhead exposure. 
Notify workers of the application by warning them orally and by posting warning signs at entrances to treated areas. 
 
Do not allow people or pets to touch treated plants until the sprays have dried. 
This Product:

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 4 
Encourages faster coloration and maturity of APPLES, GRAPES, PEPPERS, and TOMATOES. 
Loosens APPLES, CHERRIES, and WALNUTS for an earlier and more efficient harvest. 
Encourages earlier, uniform coloring of mature FLUE-CURED TOBACCO. 
Encourages fruit abscission (slipping) in CANTALOUPES. 
Augments hardiness in dormant fruit buds and helps to delay the spring bloom of SWEET CHERRIES in the Pacific Northwest. 
Accelerates the loosening and ripening of BLACKBERRIES. 
Minimizes lodging in WHEAT and BARLEY. 
Eliminates leafy mistletoe from ORNAMENTAL DECIDUOUS TREES and dwarf mistletoe from ORNAMENTAL CONIFERS. 
Removes unwanted fruit on ornamental APPLE, CRABAPPLE, CAROB, and OLIVE trees. 
PRODUCT INFORMATION 
Contact your Extension Pomologist, Farm Advisor, Horticultural Sp ecialist or Helena Agri-Enterprises Representative for local 
recommendations on product spray volume, spray equipment and rates of application for varying weather conditions. 
It is the pestic ide user’s responsibility to ensure that all products are regist ered for the intended use. Read and follow the applicable 
restrictions and limitations and directions for use on all product labels involved in tank mixing. Users must follow the most r estrictive 
directions for use and precautionary statements of each product in the tank mixture. 
APPLICATION VOLUMES AND SPRAY COVERAGE 
For optimum product efficacy, thorough spray coverage is necessary . This can be influenced by type of spray equipment, spray bo om 
setup, nozzle selection, plant size, canopy density and spray pressure. Depending on these choices, the necessary spray volume will 
vary. For applications by air in California and Arizona, more than 5 gallons per acre must be used. 
USE PRECAUTIONS 
THE MIXTURE OF THIS PRODUCT WITH AMMONIUM THIOSULFATE IS PROHIBITED AS IT MAY CREATE TOXIC FUMES. Other 
than recommended on this label, this product should not be used with additives. 
Upon mixture, this product should be applied as soon as possible; in no case should the spray solution be stored overnight. 
Detrimental changes to plant growth, reduced yields, and plant injury may result from spray drift of this product to nearby crops and thus 
should be avoided. Do not plant another crop within 30 days after treatment. 
This product is corrosive. Therefore, spil ls of concentrated product on the aircraft or other spray equipment should be avoided . Should 
such contact be made, immediately rinse with water. 
EQUIPMENT CLEANING 
This product is corrosive. As a result, spray deposit exposure will, over a period of time, damage metal, some paints and acrylic 
plastics. No more than one hour after exposure to spray deposits, these materials should be carefully rinsed with water and detergent.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 5 
TOBACCO 
(Flue-Cured Only) 
(Not for use in California) 
A foliar spray of Omni Brand Ethephon 2 lb promotes early, uniform “yellowing” of mature tobacco. Omni Brand Ethephon 2 lb 
reduces curing time, allowing more efficient use of curing barn space, and increased control over harvest schedules. 
Omni Brand Ethephon 2 lb increases the capacity of the curing barn by shortening the curing time and allows adjustments in harvest 
schedules. Omni Brand Ethephon 2 lb can be used as a directed spray to the bottom or middle portion of the tobacco plant or as an 
over-the-top spray. Omni Brand Ethephon 2 lb is not intended or recommended for use on immature tobacco. 
 
Crop Situation Omni Brand 
Ethephon 2 lb 
Pints/A 
Specific Directions 
Directed Spray 
Application 
4 Use drop nozzles. Choose TG or OC spray tips designed to apply 50 to 60 gpa 
at 35 to 40 psi and at tractor speed of 2 to 3 mph. Use 2 nozzles per row; one 
on each side of the row dropped low enough to direct the spray to the leaves to 
be ripened and harvested.
 Thorough spray coverage is essential. With a 
directed spray, be sure to harvest all leaves with 20% or more yellowing. 
Over-The-Top 
Application 
4-8 Treat only when leaves remaining on the stalk are mature. To ensure remaining 
leaves are mature, test spray several tobacco plants as described under the 
section “Application Timing.” Use the lower rate in a normally mature crop when 
experience indicates that minimum ripening inducement is required. Use the 
higher rate when the crop is heavy and has a tendency to be more rank or 
when temperatures are lower than normal. Always test spray to determine if the 
tobacco is mature enough to respond to treatment with Omni Brand Ethephon 
2 lb. 
Apply over-the-top Omni Brand Ethephon 2 lb spray as a fine mist using three 
nozzles (one nozzle tip over the center of the plant, and one on each side) to 
assure all leaves are covered thoroughly, similar to the application pattern of 
systemic sucker control agents. Use a spray pressure of 40 to 60 psi. 
RESTRICTIONS 
Do not apply Omni Brand Ethephon 2 lb to immature leaves as this can result in un satisfactory coloring, weight loss and reduced 
leaf quality. 
Do not allow the crop to over ripen in the field after using Omni Brand Ethephon 2 lb, since this may cause some reduction in yield 
and quality. 
Do not treat before anticipated major storm which could prevent harvest and result in crop loss. 
Do not apply Omni Brand Ethephon 2 lb if rain is expected within 6 hours. 
Do not harvest tobacco treated with Omni Brand Ethephon 2 lb sooner than 2 days after application. 
Follow use rates listed above for labeled uses. 
Do not exceed 8 pints of this product (2 lb ethephon) per acre per year. 
 
APPLICATION TIMING 
Successful results with Omni Brand Ethephon 2 lb call for treatment when leaves are mature, not overly rank green when sprayed. To 
easily determine the proper treatment timing and the number of leaves per stalk ready for harvest, test spray several plants in more than 
one location in each field and observe the response. Mature leaves will begin to yellow in 24 to 72 hours. Test leaves that fai l to yellow 
in 72 hours are not mature and are not ready for Omni Brand Ethephon 2 lb treatment. Wait a few days to permit further natural maturing, 
then make another test spray or “maturity“check. 
Determine acres to treat by first confirming the number of leaves per plant that will color, then use barn capacity to calculate the number 
of acres to treat. 
A test spray can be prepared by mixing 4 teaspoons of Omni Brand Ethephon 2 lb in 1 quart of water. Apply about 1 ounce to each test 
plant covering all leaves with a fine mist. Omni Brand Ethephon 2 lb will not color immature leaves. 
To avoid quality loss and/or possible leaf drop, harvest any yellow ed leaves prior to application. Use lower rates under most c onditions. 
Limit use of higher rates to cool (below 650 F at the time of treatment) slow ripening conditions. 
WHEN TO HARVEST 
All mature, sprayed leaves will begin to color within 24 to 72 hours after Omni Brand Ethephon 2 lb application. The yellowing process 
is weather dependent; cool weather will delay, while hot, sunny weather can speed up the process. Harvest treated tobacco when leaves 
have reached the desired color intensity. 
Harvest can commence 48 hours after Omni Brand Ethephon 2 lb application. To determine harvest timing and avoid quality loss or 
leaf drop, closely monitor treated crop and weather conditions.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 6 
CURING Omni Brand Ethephon 2 lb TREATED TOBACCO 
Curing procedures are as much an art as a science and each cure must be judged on the basis of tobacco condition, interval betw een 
treatment and harvest, weather and type of curing facility before prescription temperature and ventilation schedules can be established. 
To obtain maximum quality, care must be taken to observe and control the curing process closely, especially during the la te “coloring” 
and early “drying” stages of the leaf. 
Omni Brand Ethephon 2 lb treated tobacco will have started the coloring process when harvested, reducing the time required in the 
coloring phase of curing. Treated tobacco should be dried faster. If tobacco leaves are green or contain some green when harves ted, it 
may be necessary to color them for a few hours. If the leaves are completely yellow, temperature and ventilation must be adjust ed in a 
manner to dry the tobacco as fast as possible without scalding. Once the leaf is dried (3/4 dry), you should follow normal proc edures for 
curing. Since Omni Brand Ethephon 2 lb treated leaves cure faster, treated and untreated leaves should not be cured together in the 
same barn.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 7 
TOMATOES 
PROCESSED: Recoverable fruit yield from a once-over harvest may be increased by a foliar spray of this product, which will concentrate 
and speed up the ripening of tomatoes. Ripening will begin earlier and mature plant ripening will converge. This will concentrate maturity 
in the plants, allowing the higher yield of ripe tomatoes in a onc e-over harvest. In addition, th is will help to prolong the no rmal harvest 
season and assist in harvest scheduling and product handling. 
FRESH MARKET TOMATOES IN CALIFORNIA: Early marketable fruit yields may be increased by a foliar spray of this product, which 
will speed up the ripening of tomatoes. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
PROCESSED 
TOMATOES: 
 
 
1) WARM 
TEMPERATURES 
 
OR
 
 
2) EARLY TO MID-
SEASON
 
1 1/4-3 1/4 
 
This product should be applied when 
5
 to 15% of the tomato fruit in the 
treatment area, including breakers, 
are pink and red in color and there 
are enough mature green tomato 
fruit to create the desired amount of 
harvest.
 When temperatures are 
over 850F, this product can be 
effective at rates as small as 1 ¼ 
pt
/A. 
It is necessary to maintain thorough 
coverage of the fruit and foliage.
 As 
a result, spray volumes and aerial or 
ground equipment should be chosen 
to maximize coverage.
 Please note, 
however, that overlapping spray 
nozzle patterns or swaths may result 
in overdosing and, as a result, 
extreme injury to foliage.
 When 
applying the spray band over the 
row, be sure to reduce the 
application rate in proportion to the 
actual treatment area.
 The treatment 
area should be closely monitored 
and crops should be harvested once 
proper maturity is reached. 
 
Generally, this product should be 
applied when the preferred amount of 
tomato fruit is mature and of a 
marketable size.
 Before applying this 
product, the treatment area should be 
observed closely, including by sampling 
plants to determine the crop’s stage of 
growth and degree of maturity. While 
fruit size may be an indicator of 
maturity, it is not enough: sample 
plants, including breakers, should be 
weighed, sorted and color determined. 
The stage for treatment will vary based 
on 
crop conditions. Using the specific 
directions on this label, crop conditions 
may be determined during regular 
observations of the area to be treated. 
After treatment and before har
vest, 
normal cultural practices should be 
observed.
 For an optimum yield of high-
quality fruit, it is necessary for harvest 
to be well
-timed. As a result, it is 
recommended that application timing 
be coordinated with delivery schedules 
of the processor. 
If the treatment area shows signs of 
inconsistent plant vigor as a result of 
cultural practices or soil conditions, 
contact your local 
Helena Agri-
Enterprises representative, Farm 
Advisor or Extension Horticulture 
Specialist for advice on correct use of 
this product and for temperature
-
specific rates of fruit ripening, as 
allowed under the timing and rate 
limitations on this label. 
PROCESSED 
TOMATOES:
 
1) COOL 
TEMPERATURES 
OR 
2) LATE SEASON 
OR 
3) COASTAL CROPS 
3 1/4-6 1/2 This product should be applied when 
5
 to 30% of the tomato fruit in the 
treatment area, including breakers, 
are pink and red in color and there 
are enough mature green tomato 
fruit to create the desired amount of 
harvest.
 For optimum efficacy, this 
product should be applied when 5 to 
15% of the tomato fruit in the 
treatment area, including breakers, 
are pink and red in color.
 For dense 
vegetative growth or at cooler 
nighttime temperatures (less than 
65
qF), the higher rate of this product 
should be used. It is necessary to 
maintain thorough coverage of the 
fruit and foliage.
 As a result, spray 
volumes and aerial or ground 
Crop should be harvested at time of 
suitable maturity. Fruit may ripen earlier 
at temperatures above 90
qF. Natural 
color development may be slowed at 
temperatures below 65qF, delaying the 
time of harvest.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 8 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
equipment should be chosen to 
maximize coverage. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
FRESH MARKET 
TOMATOES IN 
CALIFORNIA 
1 1/4-5 This product should be applied when 
the preferred amount of tomato fruit 
is mature and of a marketable size. 
This time is usually 3
 to 6 days prior 
to harvest. Treated crops will only 
yield one harvest. It is necessary to 
maintain thorough coverage of the 
fruit and foliage. As a result, spray 
volumes and aerial or ground 
equipment should be chosen to 
maximize coverage.
 For dense 
vegetative growth and at cooler 
temperatures (generally under 
85qF), the longer pre-harvest interval 
and higher rate of this product 
should be used on late season 
crops. When temperatures are over 
850F, this product can be effective at 
rates as small as 1 ¼ pt/A. In 
addition, this lower rate may reduce 
damage to the foliage of certain 
sensitive varieties, as noted below. 
Check treated fruit frequently and 
harvest at desired maturity. When 
programming harvest, spray a different 
block each day and harvest blocks daily 
in the same sequence.
 
PRECAUTIONS 
Because this product is unable to cause immature green fruit to ripen, it should not be applied prior to the development of enough green 
fruit to produce the necessary harvest size. 
After treatment, some foliage may appear aged or yellowed. 
This product should not be applied to plants that are under stress because of drought, disease, insect pressure or soil conditions or with 
inferior root systems. Such application, particularly under high temperatures, may cause foliage cover to quickly diminish, res ulting in a 
higher chance of sunburn and sun scald. 
This product should not be applied when expected temperatures at the treatment area are going to remain above 105qF. 
Sensitive plant varieties should not be treated during sustained times of temperatures over 100qF. Under these conditions, the lower rate 
should be used. Some examples of plant varieties that are most sensitive to foliar damage include VF 10, VF 315, VF 145, 21-4, and 13L. 
This product should not be applied to an area greater than can be harvested within 2-3 days. 
This product should not be applied to plant varieties particularly susceptible to rapid softening or shattering when ripe. 
RESTRICTIONS 
Tank mixing of this product with spray adjuvants, sun protection whiteners, sun protection products or any other additives is prohibited. 
Do not use on greenhouse tomatoes. 
Pre-harvest interval is three (3) days. 
Do not apply more than 6.5 pt (1.63 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 9 
 
BLUEBERRIES 
This product, when applied as a foliar spray, will contribute to an easier and more efficient harvest by concentrating blueberr y maturity. 
In addition, growth of black barrenberry (Aronia melanocarpa) flowers and/or fruit growing in Maine lowbush blueberry fields will be slowed 
through use of this product in a foliar spray, lowering the amount of unwanted fruit harvested with the desired crop. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
FRUIT COLOR 
ACCELERATION 
AND MATURITY 
CONCENTRATION 
TREATMENT 
 
(Cultivars Bluecrop, 
Weymouth, Jersey, 
Rancocaas, Rubel, 
Bluetta, 
Erliblue, 
Wolcott, Croatan, 
Murphy, Angola, 
Morrow, Garden Blue, 
Trifblue and NC901) 
4-8 This product should be applied as a 
foliar spray at a rate of 4
-8 pt/A and 
when air temperatures are between 
60
0 and 900F. Spray volume should 
be 150 to 200 gal/A. Use the higher 
spray volume and rate on large or 
dense foliage bushes or when 
temperatures are cool.
 
It is necessary to maintain thorough 
coverage of the fruit and foliage. 
Use of a wetting agent is 
recommended to assist in the 
uniform wetting of crops.
 For 
example, Triton B-1956 can be 
applied at 0.5 pts per 100 gal or X-
77 at 2.0 pt
 per 100 gal. 
First Harvest Concentration: This 
product should be applied when 15
 to 
20% of the berries in the treatment area 
are blue.
 
 
Final Harvest Concentration: This 
product
 should be applied following first 
or second picking. Within one to two 
weeks following application, blueberries 
generally have reached proper 
coloration, indicating maturity and time 
for harvest.
 Because this product 
accelerates maturity, internal and 
external fruit quality should be observed 
daily to determine picking time.
 Please 
note that this product may cause 
greater acceleration of fruit color than 
internal ripening. The time for fruit 
ripening will shorten under higher 
temperatures (at least 90
0F). This 
product may cause a slight decrease of 
acidity, fruit size, and soluble solids, as 
well as a greater number of fruit with 
stems. 
CONTROL OF 
BLACK 
BARRENBERRY IN 
LOW BUSH 
BLUEBERRIES IN 
MAINE
 
4- 8 This product should be applied at a 
rate of 4
-8 pt/A. 
GROUND APPLICATION: Apply in 
100
 to 200 gal/A. 
AERIAL APPLICATION: Apply in 10 
gal
/A. 
It is necessary to maintain thorough 
spray coverage.
 Use of a wetting 
agent is recommended to assist in 
the uniform wetting of crops. For 
example, X-77 can be applied at 
0.1% of the spray volume. 
When black barrenberries reach 90 to 
100% petal fall, the lower rates of this 
product should be applied.
 Once black 
barrenberry fruit reaches a diameter of 
1/8 to 3/16 in., use the higher rates. 
This stage is usually reached 7 to 10 
days following the blueberry crop 
reaching this stage.
 Once blueberry 
fruit is ripe, it should be harvested. 
Usually, blueberries should be ripe 6 to 
8 weeks following treatment.
 
 
PRECAUTIONS 
Premature crops and extreme steminess may result from application of this product to cultivars not listed on this label. 
RESTRICTIONS: 
A maximum of one application may be made per season. 
A second application for the purposes of maturity concentration or fruit color acceleration is not permitted when using to cont rol 
barrenberry in Maine. 
Diminished fruit yield and defoliation may occur if plants under extreme heat or drought conditions are treated. 
Do not apply more than 8 pt (2 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 10 
CHERRIES 
Except California 
This product, when applied as a foliar spray, will help to accelerate uniform ripening and loosen fruit, thereby decreasing the mechanical 
shaking force needed during harvest. This contributes to fruit quality, yield size, harvest efficiency, and minimizes injury to trees. DO NOT 
USE ON CHERRIES IN CALIFORNIA. 
Pacific Northwest Sweet Cherries: Dormant bud hardiness is incr eased and bloom is delayed when a fall application of this produ ct is 
made. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
TART CHERRIES 1 
 
It is necessary to maintain thorough 
spray coverage.
 As a result, this 
product should be applied as a dilute 
spray in plenty of water.
 Planting 
density, tree size and the application 
equipment will determine the optimal 
spray volume. 
Pre-harvest intervals will increase when 
using lower rates.
 
 
2/3-1 Apply as a concentrate spray. For 
best results, ensure uniform
 
coverage when using a spray 
volume of less than 100 gal/A. 
SWEET CHERRIES 
(varieties such as 
Windsor, Napoleon-
Royal Anne, Emperor 
Francis)
 
3-4 
 
It is necessary to maintain thorough 
spray coverage.
 As a result, this 
product should be applied as a dilute 
spray in plenty of water.
 Delivery 
type, tree size and the application 
equipment will determine the optimal 
spray volume.
 Application to yellow-
colored or light varieties should use 
the lower rates. 
2-3 Apply as a concentrate spray. For 
best results, e
nsure uniform 
coverage when using a spray 
volume of less than 100 gal/A. 
INCREASED 
DORMANT FRUIT 
BUD HARDINESS 
AND DELAYED 
SPRING BLOOM 
(Sweet Cherries in the 
Pacific Northwest)
 
3 Treat in first two weeks of 
September.
 
A fall application of Omni Brand 
Ethephon 2 lb will increase fruit bud 
hardiness by decreasing the chance for 
winter injury and delaying bloom by 3 to 
5 days which may help avoid frost 
injury. Treatment of early flowering 
varieties may delay bloom to better 
coincide with pollination from other 
varieties. 
PRECAUTIONS 
Early treatment may result in unwanted premature fruit drop with attached stems. 
Application should be made once all fruit on the tree (including interior fruit) is in stage 3. This can be determined by observing the change 
of ground color from bright green to yellow and rapid increases in size. 
Treatment may result in cherry tree gummosis, especially when subjected to high temperatures during and after treatment. 
Treatment should occur at temperatures between 60° - 85q F and should not be made at temperatures over 85qF. 
It is necessary to maintain uniform spray coverage. Otherwise, tip dieback and gummosis may result from erratic application of this 
product. 
Excessive gummosis may result if this product is applied to trees that have been exposed to extreme conditions of stress such as drought, 
disease pressure, winter injury or low vigor. Gummosis will be intensified by periods of drought or high temperatures. 
Orchards should be irrigated, if feasible, to prevent gummosis caused by drought stress. 
After treatment, you may observe some early yellowing and drop of leaves. 
Tree damage may occur if trees are treated in the year following exposure to severe gummosis. 
Fall Bud Hardiness Treatment: You may observe a decrease in individual fruit size and minor gummosis following this treatment. 
RESTRICTIONS 
Not for use on cherries in California. 
Pre-harvest interval is seven (7) days. 
Do not apply more than 4 pt (1 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 11 
 
GRAPES 
For Use Only in Arizona and California 
Table grapes in Arizona and California: This product will accelerate uniform development of color on certain varieties of table grapes such 
as Cardinal, Emperor, Flame Seedless, Red Malaga, Queen and Tokay. This contributes to harvest efficiency of quality fruit. 
Raisin Production: This product, when applied as a foliar spray, will accelerate maturity of Thompson Seedless grapes. This will result in 
raisins of higher quality, lower acids and increased sugars. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
TABLE GRAPES 
(i.e. Cardinal, Flame 
Seedless, Red 
Malaga, and Queen) 
1/2- 2 
 
This product should be applied at 
the point of 5
 to 30% berry 
coloration. When temperatures are 
over 850F, this product can be 
effective at rates of 1/2-1 pt/A. Use 
the higher rates when temperatures 
are cool, but higher than 650 F. 
Conventional ground sprayers 
should be used to uniformly apply 
this product to fruit clusters and 
vines, using an adequate amount of 
water. 
Fruit should be harvested at time of 
suitable quality and maturity. To 
determine proper time for harvest 
(usually at least two weeks following 
application), observe fruit coloration, 
acidity and sugar content.
 Be sure to 
harvest before coloration becomes too 
dark. If needed, confer with your Farm 
Advisor or Extension Viticulturist for 
local practices with this product.
 
TOKAY GRAPES 1-2 This product should be applied at 
the point of 5 to 15% berry 
coloration. 
Conventional ground sprayers 
should be used to uniformly apply 
this product to fruit clusters and 
vines, using an adequate amount of 
water. 
RAISIN 
PRODUCTION 
(Thompson Seedless) 
1-2 This product should be applied at 
the point of 5 to 30% berry 
coloration or as a foliar spray at 5% 
berry softening. 
Conventional ground sprayers 
should be used to uniformly apply 
this product to fruit clusters and 
vines, using an adequate amount of 
water. 
This product, when applied as a foliar 
spray, will accelerate maturity of 
Thompson Seedless grapes. This will 
result in raisins of higher quality, lower 
acids and increased sugars. If needed, 
confer with your Farm Advisor or 
Extension Viticulturist for local practices 
with this product.
 
 
Table Grapes 
PRECAUTIONS 
Because the number of cracked fruit may increase, use of rates in excess of 1 pt/A is not recommended except when grapes are subject 
to poor weather conditions or a past history of difficult coloration. 
Application of this product may cause softening of berries. Take this into consideration when determining proper storage. 
Tokay grapes should not be stored. 
RESTRICTIONS 
Pre-harvest interval is fourteen (14) days. 
Do not apply more than 2 pt (0.5 lb ethephon) of this product per acre per year. 
Raisin Production (Thompson Seedless) 
PRECAUTIONS 
To determine proper time for harvest, observe acidity and sugar content 
This product should not be applied to grapes exposed to moisture stress or insect pressure. 
RESTRICTIONS 
Do not apply more than 2 pt (0.5 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 12 
 
APPLES 
This product, when applied as a foliar spray, will help to accelerate uniform ripening and loosen fruit, thereby decreasing the mechanical 
shaking force needed during harvest. This contributes to fruit qua lity, yield size, harvest efficiency, and minimizes injury to trees. This 
product will accelerate ripening and red coloration when applied along with a 1-Napthaleneacettic Acid, Sodium Salt plant growth regulator 
like FRUITONE® N to control pre-harvest drop . This product will contribute to format ion of flower buds and restrict vegetative growth 
when applied to young trees. 
 
Crop-Stage Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
FRUIT LOOSENING 
VARIETIES MATURING IN 
EARLY TO MID-SEASON 
(maturing with McIntosh or 
earlier)
 
 
 
2 1/2 
 
This product should be applied 7 
to 14 days before expected 
normal harvest time. It is 
necessary to maintain thorough 
spray coverage. As a result, this 
product should be applied as a 
foliar spray in plenty of water. 
Tree size and the application 
equipment will determine the 
optimal spray volume. Fruit 
treated with this product will reach 
picking time faster; as a result, 
check fruit maturity daily.
 
Different uses of this product as specifically 
directed will encourage: 1) Uniform 
coloration and ripening while not 
contributing to loosening, 2) development of 
flower buds on young trees, 3) fruit 
loosening, and/or 4) thinning and return 
bloom. 
This product should be applied at 
temperatures between 60qF and 90qF, 
except under the conditions of rising 
temperatures, you may treat at 50qF. Pre-
harvest intervals will increase when lower 
temperatures are present. Warm daytime 
conditions will hasten loosening and 
ripening of fruit; however, color response will 
be diminished.
 
Overripe fruit on trees should not be 
tolerated as such fruit may soften earlier 
once harvested. Be sure to check maturity 
and quality of any fruit to be sold at a fresh 
market. While fruit color may be an indicator 
of maturity, it is not enough: internal
 maturity 
should also be checked using a pressure 
gauge or other method. 
This product should not be applied to an 
area greater than can be harvested within 1 
to 
2 days. Fruit in good condition can be 
stored in cold-air storage. 
 
 
LATE MATURING 
VARIETIES IN THE 
EASTERN UNITED 
STATES (maturing later 
than McIntosh) 
5 
PROMOTION OF UNIFORM RIPENING AND COLORING OF RED VARIETIES WITHOUT LOOSENING 
VARIETIES MATURING 
EARLY TO MID-SEASON 
(maturing with McIntosh or 
earlier).
 
 
1-4 
 
 
This product should be applied 
with a pre-harvest drop control 
chemical registered for use on 
apples (e.g., FRUITONE N) as a 
foliar spray. Observe all directions 
on both product’s labels. 
Treatments should begin 2
 to 3 
weeks prior to the normal harvest 
time and 1 to 2 weeks prior to 
preferred harvest time. 
It is necessary to maintain 
thorough spray coverage. As a 
result, this product should be 
applied as a dilute spray in plenty 
of water. Type of delivery, tree 
size and the application 
equipment will determine the 
optimal spray volume. For apples 
to be stored, use the lower rate. 
 
 
 
Check with your local extension Pomologist 
or Horticulturist and the pre-harvest drop 
control chemical’s label for best local 
practices.
 
LATE MATURING 
VARIETIES 
(maturing later than 
McIntosh) 
2-4 
 
THINNING AND RETURN BLOOM

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 13 
Crop-Stage Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
Majority of Varieties 
 
 
1 1/2-4 
 
 
This product should be applied 10 
to 20 days following full bloom. 
You may mix this product with 
carbaryl containing insecticides to 
promote thinning
. When using 
these products together, you must 
abide by the most restrictive label 
guidelines. Do not exceed any 
label’s recommended dosages. 
This product may not be mixed 
with other products whose labels 
prohibit such mixtures. Consult 
local extension recommendations. 
Optimal application efficacy may 
be reached by the addition of a 
non
-ionic surfactant. 
In areas of water alkalinity, 
product efficacy can be increased 
by buffering the spray solution to a 
pH of 3 to 5. It is necessary to 
maintain thorough spray coverage 
As a result, this product should be 
applied in enough water to cover 
trees. 
It may be difficult to regulate cropping from 
one season to the next. Extreme alternate 
bearing may develop in a subsequent year if 
a large number of lateral buds and spurs 
bloom in one season.
 
This product should be used alone or 
together with a 1- Naphthaleneacetamide 
product or one with carbaryl to defeat this 
disorder. Such an application should occur 7 
to 
21 days following full bloom. The 
necessary amount of thinning and your 
orchard’s biennial history of bearing will 
determine which treatment program should 
be used.
 
 
On Red Delicious trees (especially those 
subject to stress) or trees treated with the 
higher rates, you may observe a decrease in 
fruit size and “type”. 
 
 
 
 
 
Varieties Such as Golden 
Delicious that Are Difficult 
to Thin
 
3-6 
FLOWER BUD DEVELOPMENT TREATMENT 
NONBEARING TREES 
 
2-8 
 
Trees should be treated uniformly 
and thoroughly up until runoff. 
Trees with greater vigor will 
require the higher 
rate. 
This product should be applied 2 
to 4 weeks following full bloom. 
Treatments should be delayed 
until after June drop and six 
weeks following full bloom to help 
prevent fruit thinning. 
This product should be applied as a foliar 
spray to non-bearing trees 2 to 4 weeks 
following bloom to promote the development 
of flower buds. 
 
Decreased fruit and yield size as well as 
thinning of fruit may result during the year of 
treatment; however, flowering should 
increase the following Spring. 
 
Before using this treatment, ensure the trees 
to be treated are large enough to be able to 
support a crop of apples.
 
BEARING TREES ½-3 
 
Precautions 
Decreased fruit and yield size as well as thinning of fruit may result from use of this product. 
This product should not be used on trees with lowered strength, as it may result in excessive growth reduction. 
Double coverage should be avoided. 
Because return bloom and thinning may be influenced by en vironmental conditions, testing any one program on a small 
batch of trees at first is recommended. 
Newly-bearing young trees may be at risk of a reduction in fruit size and unwanted fruit thinning. 
It is necessary to maintain thorough coverage of the fruit and foliage. Use of a wetting agent is recommended to assist in 
the uniform wetting of crops. 
When making application to accelerate maturity, a decrease in fruit size may result, particularly when fruit is small when 
treated. 
Decreased fruit size and quality may occur if treatment is made more than three weeks prior to the normal planned time for 
harvest. 
 
RESTRICTIONS 
Grazing or feeding of cover crops to livestock is prohibited. 
Pre-Harvest interval is seven (7) days. 
Do not apply more than 8 pt (2 lb ethephon) of this product per acre, per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 14 
WALNUTS 
 
THIS USE IS FOR WALNUTS IN CALIFORNIA ONLY. This product, when applied as a foliar spray, will help to loosen 
walnuts, thereby decreasing the mechanical shaking force needed during harvest. This contributes to better hull removal, 
yield size (from a once-over harvest), harvest efficiency, and earlier harvest. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
USE IN 
CALIFORNIA 
 
3-5 For spray concentration 
recommendations, see the chart 
below. Optimal results will occur 
when spray concentrations are 
between 200 to 900 ppm. Higher 
rates should be used during low 
humidity or temperatures. Pre-
harvest intervals will decrease when 
using higher rates. Application 
should be made at temperatures 
between 60 to 950 F for optimal 
results. Applications at temperatures 
above 900 F and low humidity may 
be less effective due to spray 
evaporation. 
This product should be applied using 
equipment giving the highest spray 
penetration to provide thorough 
uniform coverage of walnut hulls. 
This is necessary to achieve optimal 
nut loosening and hull split.
 When 
the size of the tree inhibits optimal 
spray penetration, use of large air 
carrier sprayers or volume sprayer 
attachments is recommended. 
 
Walnuts are mature when the packing 
tissue between kernel halves completes 
browning. Collect nut samples from 
throughout the tree canopy when 
determining percent nut maturity. 
 
Advancing Harvest: 
This product should be applied when 
maturity has been achieved by 95 to 
100% of the nuts. Harvest should be 
made as soon as sufficient hullability 
occurs. Depending on weather 
conditions and variety of walnut, this 
usually happens approximately 10 to 16 
days following application. Inspect 
regularly. Second shake should occur 
10 to 12 days following the first. 
Once Over Harvest: Maturity and the 
chance for a once over harvest will be 
influenced by weather and growing 
conditions, as well as the variety of nut. 
Local fieldmen or Farm Advisors should 
be consulted to determine whether a 
once over harvest will be available.
 
Treatments to mature walnuts should 
begin 10 days prior to the normal 
harvest time and 7 to 12 days prior to 
preferred harvest time. 
 
 
PRECAUTIONS 
Quality may be diminished if application is made prior to the packing tissue brown (mature) stage. 
Application of this product may cause some leaf drop. 
Trees which are moisture-stressed, diseased, or have low vigor should not be treated as excessive leaf drop may result. 
Twig dieback, extreme defoliation, diminished catkin formation or other tree injuries may occur if higher-than-recommended 
rates are applied. Be sure to measure accurately. 
RESTRICTIONS 
Pre-harvest interval is five (5) days. 
Do not apply more than 5 pt (1.25 lb ethephon) of this product per acre, per year. 
Spray Preparation Chart 
 
Application Rate Spray Volume (Gallons/A) 
100 200 300 400 500 
Pt/A Lb/A Concentration (ppm) 
3 0.75 900 450 300 --- --- 
4 1.00 --- 600 400 300 --- 
5 1.25 --- 750 500 375 300

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 15 
 
PEPPERS 
This product, when applied as a foliar spray, will accelerate uniform coloration and ripening, resulting in better handling and packing 
efficiency. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
PEPPERS 1 1/4-4 It is necessary to maintain thorough 
coverage of the fruit and foliage. As 
a result, spray volumes and 
equipment should be chosen to 
maximize coverage. If plants are 
strongly growing, subject to 
temperatures lower than 65
qF, or 
have dense foliage, the higher rate 
should be used.
 Spray Volume: 
Rates between 1 ¼-2 pt should be 
applied in 20 gal/A. Rates between 
3-4 pt should be applied in 40 gal/A. 
Use of less than 40 gal/A at the 
higher rate under hot and dry 
weather may result in foliage burn. 
Application Timing
: 
-Bell peppers: 10% of fruit have red 
or chocolate coloration.
 
-Chili and pimento peppers: 10 to 
30% of fruit have red or chocolate 
coloration.
 
-Application should not be made 
until enough green fruit exists for a 
sufficient yield.
 
This product will not ripen immature, 
green fruit. 
Crop is to be harvested at optimum 
maturity, generally 14 or more days 
after treatment. Maturity should be 
determined by sampling several field 
locations. Early application or 
application when there is a shortage of 
mature, uniform, green fruit (as a result 
of variable soil cultural practices or split 
fruit set) may result in a decrease in 
total yield. 
 
PRECAUTIONS 
If average temperatures are anticipated to persist at or above 95 qF, treatment should be avoided. Treatments should not be made at 
temperatures above 100qF. Such treatments will cause additional foliage yellowing, immature fruit abscission, ripening and defoliation. 
Treatments should also not be made if average te mperatures are anticipated to persist below 60 qF as such conditions may diminish 
product efficacy. 
Application of this product may cause minor leaf aging and yellowing. 
RESTRICTIONS 
Pre-harvest interval is five (5) days. 
Do not apply more than 4 pt (1 lb ethephon) of this product per acre, per year. 
ATTENTION: Tank-mixing of this product with desiccants containing sodium chlorate may create hypochlorous acids under some 
conditions. Such acids will emit toxic chloride fumes if heated.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 16 
 
BLACKBERRIES 
USE PERMITTED IN OREGON AND WASHINGTON ONLY. This product, when applied as a foliar spray, will promote uniform maturity 
and loosen fruit, thereby decreasing the mechanical force needed during harvest. This contributes to fruit quality, yield size, harvest 
efficiency, and minimizes injury to canes. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pts/A) 
Instructions Comments 
APPLICATION IN 
OREGON AND 
WASHINGTON 
(Cultivars Chehalem 
Thornless and 
Evergreen)
 
5-8 
 
This product should be applied: 
1) As a foliar spray, 
 
2) at temperatures between 60 to 
90qF, 
3) more than three days before the 
planned harvest date, and 
4) when it is not to rain within the 
next 24 hours. 
Uniform and thorough wetting of the 
fruit and foliage is necessary. 
This product can be used early in the 
harvest season to decrease the number 
of pickings or later in the harvest 
season for a final once
-over picking. 
 
PRECAUTIONS 
Because of the potential for significant fruit drop, this product should not be applied to more fruit than is possible to harve st within three 
days. 
This product should be used only as directed and on strong, healthy plants. Improper use or use on diseased or otherwise damage d 
plants will result in a decrease in berry size. 
RESTRICTIONS 
Pre-harvest interval is three (3) days. 
Do not apply more than 8 pt (2 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 17 
 
CANTALOUPES 
ONLY FOR USE IN ARIZONA, CALIFORNIA AND TEXAS: This product , when applied as a foliar spray, encourages fruit abscission 
(slipping). This leads to more efficient harvests. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
ARIZONA, 
CALIFORNIA, 
TEXAS
 
3 For uniform abscission, it is 
essential to have thorough spray 
coverage.
 Ground and aerial 
applications should be made in a 
minimum of 40 and 10 gal/A, 
respectively. Aerial application is 
allowed only in Texas. While the 
precise pre-harvest interval will differ 
based on temperature, you should 
be ready for harvest of abscised fruit 
within 2 to 5 days following 
application. Harvest schedules 
should be planned with your packer 
and/or shipper. 
For more specific directions under 
varying temperature and moisture 
conditions, consult your Extension 
Horticulturist or Farm Advisor for his 
experience with 
Omni Brand 
Ethephon 2 lb in your area. This 
product’s effects will accelerate when 
fruit is subjected to high temperatures. 
Please note that timing of applications 
of this product may differ each season. 
Do not apply this product before fruit is 
of marketable quality (as determined by 
flesh color and level of soluble solids) 
as these traits will not improve after 
application.
 
Fruit should be picked once it is of 
marketable quality as quality will 
diminish if fruit is left in the field. As a 
result, fields should be examined 
freque
ntly. Vines may exhibit rapid 
aging or yellowing after application. Do 
not apply to plants with low vigor. A 30-
day plant-back interval is required. 
PRECAUTIONS 
This product should not be applied to fields whose fruit are at less than 10% soluble solids. 
This product should be applied only if the target fields’ vines are healthy, fruit are of marketable quality (in both internal flesh 
color and soluble solids) and have a relatively uniform fruit set. 
RESTRICTIONS 
Do not apply this product at low nighttime temperatures (below 60qF). 
Pre-harvest interval is two (2) days. 
Do not apply more than 3 pt (0.75 lb ethephon) of this product per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 18 
PINEAPPLE AND SUGARCANE 
PINEAPPLE FLOWER INDUCTION: Application of Omni Brand Ethephon 2 lb will induce uniform flower initiation of 
pineapple plants. 
PINEAPPLE MATURITY CONCENTRATION: Application of Omni Brand Ethephon 2 lb will stimulate uniform shell color 
of pineapple fruit. 
SUGARCANE FLOWER PREVENTION: A foliar spray of Omni Brand Ethephon 2 lb will reduce or prevent flowering of 
sugarcane. 
SUGARCANE BIOMASS INCREASE: Omni Brand Ethephon 2 lb application to prevent flowering can result in increased 
biomass accumulation and increased recoverable sugars. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Timing of 
Application 
Instructions Comments 
PINEAPPLE 
Flower 
Induction 
Omni Brand 
Ethephon 2 lb 
applied to 
pineapple plants 
will stimulate 
uniform initiation 
of flowering. 
4-8 
 
"Bearing age" 
about 12 months 
after planting.
 
Generally about 6 
months prior 
to 
desired harvest 
Proper rate will vary with 
local growing conditions, 
varieties, plantation 
management practices and 
time of year.
 Use the higher 
rate where earlier harvest is 
desired. Apply when 
pineapple foliage is dry. 
Do not graze pineapple 
forage treated with 
Omni Brand Ethephon 
2 lb
. Do not harvest 
pineapples treated with 
Omni Brand Ethephon 
2 lb sooner than 2 days 
after the last application. 
PINEAPPLE 
Maturity 
Concentration 
Omni Brand 
Ethephon 2 lb 
application will 
stimulate uniform 
shell color 
development. 
 
2- 8 
 
When the first fruit 
begin to change 
color.
 
Use a broadcast spray, 
thoroughly cover both foliage 
and fruit.
 Use the higher rate 
during periods of cool or 
cloudy weather when normal 
ripenin
g has slowed. 
SUGARCANE 
(for use in Hawaii 
only)
 
Flower 
Prevention 
Omni Brand 
Ethephon 2 lb 
application will 
prevent or reduce 
flowering and 
pithy tissue 
formation.
 
 
Biomass 
Increase 
Omni Brand 
Ethephon 2 lb 
used to prevent 
flowering can also 
result in 
increased 
2 
 
Just prior to flower 
initiation.
 
Apply by fixed wing aircraft 
or helicopter using 
equipment designed to give 
uniform coverage.
 
 
Actual biomass increase will 
be affected by the time 
between treatment and 
harvest.
 
 
Consider anticipated 
recoverable sugars as well 
as biomass to determine 
optimum harvest date.
 
Apply no less than 7 
gallons of spray mixture 
per acre.
 Do not harvest 
sugarcane treated with 
Omni Brand Ethephon 
2 lb sooner than 2 
months after the last 
application.
 Do not graze 
sugarcane forage 
treated with 
Omni 
Brand Ethephon 2 lb.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 19 
biomass 
accumulation and 
recoverable sugar 
yield. 
 
RESTRICTIONS 
* For pineapple do not exceed 12 pt of this product (3 lb ethephon) per acre per year. 
* For sugarcane do not exceed 2 pt of this product (0.50 lb ethephon) per acre per year.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 20 
WHEAT AND BARLEY 
(NOT REGISTERED FOR USE IN CALIFORNIA) 
This product can be applied as a preventative measure in a tank-mix with certain cereal insecticides and fungicides 
approved for such use. Such a tank mix should not be applied to plants stressed by cold, disease, heat, insects or moisture 
as a decrease in yield or injury to crops may occur. Applicat ion of a tank mix of this product with propiconazole-containing 
products such as Tilt® may cause a decrease in yield or flag leaf burn. 
Assessment of economics and plant condit ions should guide treatments of insect icides and fungicides, which may or may 
not match with treatment timing of this product. 
PRECAUTIONS 
This product should not be supplemented with adjuvants, surfactants or wetting agents or tank mixed with nitrogen solutions 
or herbicides. 
Failure to observe label instructions may result in decreased product quality or yield. 
Lodging reduction effects may not occur for up to seven days following treatment. Once crops are lodged, this product is 
not effective. 
This product may affect certain disease infestations, such as mildew, rust and Septoria, and should be used in conjunction 
with a fungicide control program if necessary. 
Yield loss may occur if, during or after application, plants are subject to disease, moisture or temperature stress. 
Yield loss may occur if this product is applied under non-lodging conditions. 
Always follow label temperature restrictions. 
Harvest maturity may be delayed 1-4 days and heading by 1-2 days following use of this product. Additional harvest maturity 
delay may occur if crops are subject to ex treme temperatures within five days fo llowing treatment. Extreme temperatures 
are any under 35q F or above 85q F for non-irrigated crops, or over 90q F in irrigated crops. 
Because of the potential for maturity delay and, therefore, ha rvest delays, this product should not be used on late-seeded 
crops in short-season growing areas. 
Secondary tillers may increase following application of this produc t to certain spring barleys. This may particularly occur if 
crop is subject to temperature or moisture stress. 
This product should not be applied when rain will likely occur within six hours. 
RESTRICTIONS 
Do not apply through any type of irrigation system. 
Use of this product on Azure barley or Tyler wheat is prohibited. 
Grazing or foraging by livestock or cutting for hay or silage are prohibited. Mature straw at normal harvest may be consumed 
by animals. 
A 30-day plant-back interval is required. 
TREATMENT DECISION GUIDE 
Shortly before application of this product, the fields to be tr eated should be checked to determine the chance lodging will 
occur. This product should only be applied under these circumstances: 
x Lodging is anticipated and likely will result in a consid erable decrease in grain qual ity, harvest efficiency, and 
recoverable yield. 
x There is no disease stress or insect pressure on the crop. 
x There is little to no chance of crop stress following a pplication because of adequate irrigation or soil moisture. 
x Extreme temperature fluctuations (as described in the PRECAUTIONS section for Wheat and Barley) are not 
anticipated to occur within five days following application. 
x Crop is at the proper growth stage: Feekes 8 to 10. 
APPLICATION TIMING
 
This product should be applied at the point the flag leaf is barely visible to the boot stage. Apply prior to awn emergence or 
sheath split. These visual cues correspond to Feekes-Large Scale 8 to 10 and Zadok’s Code 37 to 45. Crop damage and 
decreased yields may occur if application contacts exposed heads. 
APPLICATION 
For best results, post-treatment temperatures should be no less than 60q F. Overlapping sprays should be avoided as yield 
and rate loss may be exaggerated. 
Ground application: Application with conventional ground equipment should be made in at least 7 gal/A of water. Use of flat 
fan nozzles is suggested. Application with air foil-type equipment or by controlled droplet application (CDA) should be made 
in at least 5 gal/A of water. Spray boom should be adjusted to drive at moderate speed and at the height of the plant canopy 
to avoid an uneven application. 
Aerial application should be made in at least 3 gal/A of water.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 21 
USE RATES 
The application rate will be determined by environmental conditions and lodging pressure. Contact your state extension 
specialist for local recommendations on rates of application for varying conditions. The 1 pt/A rate should be used on more 
responsive varieties. Per year, do not apply more than 2 pt (0.5 lb ethephon) of this product per acre. Pre-harvest interval 
is forty (40) days. 
BARLEY AND WHEAT APPLICATION RATES 
CROP ANTICIPATED LODGING 
PRESSURE 
COMMENTS 
MODERATE HEAVY SEVERE 
APPLICATION RATE (pt/A) 
Barley (Spring and 
Winter Seasons) 
 
1 
 
1-1 ½ 
 
1 ½-2* 
The 2 pt/A rate may be necessary for use on certain 
vigorously growing tall varieties. 
Winter Wheat 1 1-1 ½ 1 ½-2* For certain tall straw varieties (e.g., “Roughrider” and 
“Agassiz”), the listed rates may be unable to control 
lodging under severe lodging conditions. 
Most Spring 
Wheats 
 
1 
 
1 
 
1 ½ 
For certain tall durum wheats (e.g., “Vic”), the listed rates 
may be unable to control lodging under severe lodging 
conditions.
 Sensitive Variety 
or High 
Temperature ** 
 
1 
 
1 
 
1 
RESTRICTIONS 
Do not apply more than 2 pt (0.5 lb ethephon) of this product per acre per year. 
Pre-harvest interval is forty (40) days. 
* Application with the 2 pint rate should be restricted to the following anticipated yield-decreasing conditions: 1) very 
tall varieties that are lodging-prone, 2) cereal types like durum notorious for severe lodging, or 3) irrigated crops that 
are subject to abnormally severe lodging. 
** This product should not be applied if it is anticipated that anytime during the five days following treatment, 
temperatures are to go above 85q F for non-irrigated crops or 90q F for irrigated crops. 
NON-IRRIGATED WHEAT AND BARLEY 
Application of this product to non-irrigated wheat and barley in states West of the Mississippi River is prohibited except West 
of the Cascade Range in the States of Oregon and Washington. 
IRRIGATED WHEAT AND BARLEY 
To prevent stress on the crop, it is reco mmended to irrigate prior to and after twenty-four (24) hours following application. 
Irrigation should continue through the period of grain head filling if weather remains hot and dry. Please note that 
considerable decreases in yield and plant qu ality may occur if crop is subject to he at stress and moisture during grain fill 
and antithesis. As a result, it is imperative to avoid plant stress during these periods when treating with this product. 
GROWTH STAGE CHART 
Growth 
Class 
2nd Node 
Detect able 
Flag leaf 
Barely 
Visible 
Flag Leaf 
Ligule 
Visible 
Swollen Boot First Spikelet 
Visible 
Inflorescence 
¾ complete 
Feekes-
Large Scale 
7 8 9 10 10.1 10.4 
Zadok’s 
Code 
32 37 39 45 50 57 
Treatment 
time advice 
Too 
Early 
 Too late

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 22 
 
 
MISTLETOE REMOVAL 
DWARF AND LEAFY MISTLETOE REMOVAL: A foliar spray of Omni Brand Ethephon 2 lb will remove dwarf mistletoe 
shoots in ornamental conifers and leafy mistletoe from ornamental deciduous trees. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
DWARF MISTLETOE ON 
ORNAMENTAL 
CONIFERS 
 
2 pt per 20 gal Apply as a foliar spray to 
dwarf mistletoe shoots before 
mistletoe seed dispersal.
 For 
effective removal, all 
mistletoe shoots must be 
sprayed to wet.
 Use of a 
nonionic surfactant at 
recommended rates may 
increase effectiveness. Treat 
any mistletoe regrowth before 
seed dispersal.
 
Applications made in conjunction 
with sylvicultural mistletoe 
management will prevent spread 
of the mistletoe parasite to other 
parts of the tree and other trees. 
DOUGLAS FIR, 
ORNAMENTALS
 
1 pt per 20 gal Mature needle drop, that 
normally occurs in the fall, may 
be hastened by the use of Omni 
Brand Ethephon 2 lb. 
Applications of higher rates on 
Douglas fir may result in 
excessive needle drop. 
LEAFY MISTLETOE ON 
ORNAMENTAL 
DECIDUOUS TREES
 
4 pt per 20 gal Make applications after fall 
leaf drop through mid-winter. 
For effective removal, all 
mistletoe shoots must be 
sprayed to wet.
 Use of a 
nonionic surfactant at 
recommended rates may 
increase effectiveness. Any 
mistletoe regrowth should be 
treated during the l
abeled 
application window. 
Large mistletoe infections and 
mistletoe found in mesquite may 
be difficult to control with a single 
application and retreatment may 
be necessary.
 
 
 
FRUIT ELIMINATION 
(Ornamental Use Only) 
UNDESIRABLE FRUIT ELIMINATION: A foliar spray of Omni Brand Ethephon 2 lb will reduce or eliminate undesirable 
fruit development on apple, crabapple, carob and olive trees. 
 
Crop Omni Brand 
Ethephon 2 lb 
(Pt/A) 
Instructions Comments 
APPLES, CRABAPPLES 8-12 fl oz per 20 gal Apply as a foliar spray at the 
flower bud to full bloom stage, 
prior to fruit set. Wet foliage 
thoroughly. Over application 
of Omni Brand Ethephon 2 
lb can result in excessive leaf 
drop and/or tree defoliation. 
Use higher rates when 
temperatures are cool. 
Application must be made 
before fruit set for best 
results. Do not treat weak 
trees or trees under stress 
(drought, insect or disease 
damaged trees) as excessive 
leaf drop or twig drop can 
result.
 
 
Some leaf drop or temporary 
leaf yellowing may occur after 
treatment. 
Do not use on small red 
fruited varieties of crabapple 
as fruit elimination will not be 
satisfactory. 
CAROB 
(Ceratonia siliqua) 
6 fl oz per 20 gal Apply as a foliar spray. Wet 
all foliage thoroughly. 
Amount of spray will depend 
on tree size. OLIVE 
(Olea auropaea) 
12 fl oz per 20 gal

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 23 
 
TURF (Golf course use only) 
Do not use on residential turf or lawns, institutional turf, parks, recreational fields, or sod farms. 
Omni Brand Ethephon 2 lb is a plant growth regulator that may be used to suppress the formation of seedheads of 
various plants including Poa annua and white clover. It may also be used to suppress the growth of certain cool season 
grasses. Omni Brand Ethephon 2 lb is foliarly absorbed and is most effective on actively growing healthy turf. For best 
results, apply in sufficient volume of water to provide uniform coverage. Use of spreader/sticker with an application of 
Omni Brand Ethephon 2 lb is not necessary. 
Omni Brand Ethephon 2 lb is rainfast within 2 hours. Do not allow entry into treated area until Omni Brand Ethephon 2 
lb has dried. For maximum performance, delay mowing until the day after application. 
Precautions and Restrictions: 
x Do not treat turfgrass with poor root systems or growi ng under stress due to poor soil conditions, drought, 
disease, or insect damage. 
x Do not use Omni Brand Ethephon 2 lb in areas where excessive thatch has accumulated. 
x Scalping may occur on creeping bentgrass cultivars after more than 2 applications of Omni Brand Ethephon 2 lb 
for Poa seedhead suppression. 
x Omni Brand Ethephon 2 lb has been used successfully on many bentgrass cultivars. Tolerance testing should 
be done in new cultivars before extensive use. 
x Do not exceed a maximum of 30 fl oz of Omni Brand Ethephon 2 lb per 1,000 sq ft per year. 
x Do not mix with ammonium thiosulfate. This tax mix may result in the formation of toxic fumes. 
x Use on golf courses is limited to tees, greens, and fairways only. 
x Do not apply more than 3.4 lbs of ethephon a.i./A per application. 
x Do not apply more frequently than every 14 days. 
x East of the Mississippi River: Do not apply more than 13.6 lbs of ethephon a.i./A per year. 
x West of the Mississippi River: Do not apply more than 20.4 lbs of ethephon a.i./A per year. 
Seedhead Suppression: Foliar application of Omni Brand Ethephon 2 lb will provide suppression of Poa annua and 
white clover seedheads. Make the initial application prior to the emergence of new seedheads. A period of 2 to 3 weeks 
after application is required for maximum performance. Repeat applications may be made to predominately Poa annua or 
white clover sites as needed, but not less than two weeks after the previous 
application. 
 
APPLICATION SITES RATE SPRAY VOLUME 
Poa annua and 
White Clover 
Seedhead 
Suppression 
Reapplication 
interval: 2 
weeks or greater 
for all labeled 
grasses 
Golf course turf including Greens, 
Tees and Fairways 
 
Including Bentgrass, Kentucky Bluegrass, 
Perennial Ryegrass, Tall and Fine Fescue, and 
Bermudagrass 
5 fl oz/ 
1,000 sq ft 
 
1.0-2.0 gal/ 
1,000 sq ft 
Tank Mixture with Products containing the active ingredient Trinexapac-Ethyl: 
Tank mixtures of Omni Brand Ethephon 2 lb at 5 fl oz/1,000 sq ft and trinexapac-ethyl-containing products at labeled 
rate can be used to promote seedhead suppression as well as turfgrass quality. Multiple applications of the tank mix 
combination may be needed. The number of applications must not exceed recommendations for rates or timings for either 
product applied once. Follow the directions on each product label for the most restrictive application interval for each 
turfgrass. Application of this tank mixture during frost periods may cause temporary turf discoloration. 
Growth Suppression: An application of Omni Brand Ethephon 2 lb slows the growth of turfgrasses, thus reducing the 
required frequency of mowing and the volume of clippings collected. For best turfgrass growth regulation, apply Omni 
Brand Ethephon 2 lb when daytime air temperatures are 65°F and rising. Omni Brand Ethephon 2 lb should only be 
applied once turfgrass mowing heights have been established for the season. Avoid multiple applications of Omni Brand 
Ethephon 2 lb in areas where excessive thatch has accumulated.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 24 
 
APPLICATION SITES RATE SPRAY VOLUME 
Turfgrass Growth 
Regulation 
Reapplication 
intervals: 
• Kentucky Bluegrass - 
7 weeks 
• Perennial Ryegrass - 
7 weeks 
• Tall/Fine Fescue - 
4 weeks 
• Bentgrass - 
4 weeks 
 
Golf course turf including Greens, 
Tees and Fairways 
 
Including Bentgrass, Kentucky 
Bluegrass, Perennial Ryegrass, 
Tall and Fine Fescue 
 
5 fl oz/ 
1,000 sq ft 
 
1.0 to 2.0 gal/ 
1,000 sq ft 
 
NOTE: Since Omni Brand Ethephon 2 lb is an acidic product, prolonged exposure to spray deposits will damage acrylic 
plastics, certain paints and metals. Thoroughly rinse all exposed acrylic-plastic materials and painted 
surfaces with a detergent and water within one hour after exposure to spray deposits.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 25 
COTTON 
Omni Brand Ethephon 2 lb used as a foliar spray will improve boll opening of mature bolls that are unopened and assist in 
overall defoliation, which can result in improved yields and earlier harvesting. Foliar sprays of Omni Brand Ethephon 2 lb 
promote once-over harvesting that can increase efficiency. 
SPRAY PREPARATION 
Begin by filling the spray tank with ½ to ¾ of the necessary spray volume and begin agitation. The required amount of Omni 
Brand Ethephon 2 lb and remaining amount of water can then be added. Prepare only as much spray solution as can be used 
on the day the product and water are mixed. Do not allow spray solution to stand overnight. Prevent spillage of concentrated 
product onto airplane parts or spray equipment. 
ANY SPILLS SHOULD BE RINSED IMMEDIATELY WITH PLENTY OF WATER. 
Use of a nurse tank is highly recommended for avoiding possible spills of concentrated formulation on spray equipment or 
any airplane parts. 
TANK MIXTURES WITH DEFOLIANTS, DESSICANTS AND INSECTICIDES 
Follow all applicable use precautions and rate per acre recommendations on labels of products applied as tank mixtures 
or in sequence with Omni Brand Ethephon 2 lb. In some cases slight reduction in boll opening response has been 
observed when tank mixes with defoliants were used. 
Omni Brand Ethephon 2 lb should be applied in a tank mix with an EPA approved defoliant for consistent defoliation and 
regrowth inhibition. Omni Brand Ethephon 2 lb can also be applied in a tank mix with EPA approved desiccants or 
herbicides. Tank mixes should be made in accordance with the label that is more restrictive in limitations, restrictions 
and/or precautions. 
APPLICATION INFORMATION 
Thorough and uniform coverage of cotton leaves and bolls is required for optimum regrowth inhibition and boll opening. 
Apply as a dilute spray in 10 to 25 gallons of water per acre by ground or 3 to 5 gallons of water per acre by air. 
Good agitation in the spray tank is essential and a tank mixture should not be allowed to stand without agitation for more 
than 5 to 10 minutes. Read and observe all appropriate label use directions and precautions for the defoliants and 
insecticides used. 
DO NOT MIX WITH DESICCANTS IF COTTON IS TO BE SPINDLE HARVESTED. 
DO NOT TANK MIX OMNI BRAND ETHEPHON 2 LB WITH DEFOLIANTS CONTAINING SODIUM CHLORATE 
BECAUSE THIS RESULTS IN THE FORMATION OF HYPOCHLOROUS ACIDS WHICH UPON HEATING EMIT TOXIC 
CHLORINE FUMES. 
EQUIPMENT CLEANING 
Because of the acidic nature of this product, prolonged exposure to spray deposits will damage acrylic plastics, certain 
paints, and metals. 
Rinse thoroughly with a detergent and water all exposed acrylic plastic-type materials (e.g., aircraft windshields), and 
painted surfaces within an hour after exposure to spray deposits. 
At the end of each day, rinse thoroughly with a detergent and water all the metal parts of the aircraft and the associated 
spray equipment exposed to the spray deposits. 
 
 
OMNI BRAND ETHEPHON 2 LB – PRECONDITIONER 
USE EXPECTED 
CONDITIONS 
OMNI BRAND 
ETHEPHON 2 LB 
RATE/A 
ONE 
GALLON 
OMNI 
BRAND 
ETHEPHON 
2 LB
 
TREATS 
SPRAY VOLUME TIMING 
GROUND AIR 
Preconditioner 
for defoliation 
Hot, dry, 
above 80°F 
 
16 fl oz 
(1 pt) 
0.25 
lb ai 
8 
acres 
10-25 
gal 
3-5 
gal 
Apply 4 to 7 days prior to 
defoliant. 
Enhances top crop 
defoliation reducing 
deterioration of bottom 
crop and allows for earlier 
harvest.
 
Cool, above 
65qF 
 Or 
Rank cotton 
16-32 fl oz 
(1-2 pt) 
0.25-0.5 
lb ai 
4-8 
acres

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 26 
 
 
OMNI BRAND ETHEPHON 2 LB - ALONE 
USE EXPECTED 
CONDITIONS 
OMNI BRAND 
ETHEPHON 2 LB 
RATE/A 
ONE GAL 
OMNI 
BRAND 
ETHEPHON 
2 LB
 
TREATS 
SPRAY VOLUME TIMING 
GROUND AIR 
OMNI BRAND 
ETHEPHON 2 
LB 
Hot and dry 
80qF or higher 
 
48-64 fl oz 
(3-4 pt) 
 
0.75-1.0 
lb ai 
 
2.0-2.66 
acres 
10-25 
gal 
3-5 
gal 
Apply when the number of 
mature unopened bolls is 
sufficient to produce the 
desired crop. See below 
for test of boll maturity. 
Treatment uniformly 
opens bolls 7 to 14 days 
earlier 
Dry and 
75° F to 80° F 
 
64-96 fl oz 
(4-6 pt) 
1.0-1.5 
lb ai 
1.33-2.0 
acres 
10-25 
gal 
 
3-5 
gal 
Apply when the number of 
mature unopened bolls is 
sufficient to produce the 
desired crop. See below 
for test of boll maturity. 
Treatment uniformly opens 
bolls 7 to 14 days earlier 
Cool but 
 Above 65° F 
Or 
 Rank cotton 
 
80-128 fl 
oz 
(5-8 pt) 
1.25-2.0 
lb ai 
1.0-1.66 
acres 
10-25 
gal 
3-5 
gal 
Apply when the number of 
mature unopened bolls is 
sufficient to produce the 
desired crop. See below 
for test of boll maturity. 
Treatment uniformly opens 
bolls 7 to 14 days earlier 
 
A pretreatment with a defoliant will enhance spray coverage when using Omni Brand Ethephon 2 lb in a boll opening 
treatment on cotton that has excessive vegetative growth or otherwise is spread across the middles. Use boll opening rates of 
Omni Brand Ethephon 2 lb as recommended. Observe label recommendations for the defoliant used and follow all label 
directions and precautions. 
Boll Maturity 
A boll is mature when it is difficult to make a crosswise cut with a sharp knife, and when the outer seed coat has changed from 
white to a tan or light brown color. In addition, when squeezed between the thumb and fingers, a mature boll will not dent. 
OMNI BRAND ETHEPHON 2 LB - TANK MIX 
USE EXPECTED 
CONDITIONS 
OMNI BRAND 
ETHEPHON 2 LB 
RATE/A 
ONE 
GALLON 
OMNI 
BRAND 
ETHEPHON 
2 LB
 
TREATS 
SPRAY VOLUME TIMING 
GROUND AIR 
OMNI BRAND 
ETHEPHON 2 
LB
 
+ 
DEFOLIANT 
(tribufos, 
thidiazuron, 
thidiazuron + 
diuron)
 
and other EPA 
approved 
DESICCANTS. 
Dry and 
75 °F or higher 
 
48-64 fl oz 
(3-4 pt) 
0.75-1.0 
lb ai 
2.0-2.66 
acres 
10-25 
gal 
3-5 
gal 
Apply 4 to 7 days prior to 
boll opening application. 
To be used as a 
sequential treatment with, 
not in place of boll 
opening treatment. 
High soil 
moisture 
Or 
High fertility 
level 
Or 
Rank Cotton 
 
48-128 fl oz 
(3-8 pt) 
0.75-2.0 
lb ai 
1.0-2.66 
acres 
10-25 
gal 
3-5 
gal 
Apply 4 to 7 days prior to 
boll opening application.

Omni Brand Ethephon 2lb (5905-615) 052125 CLN 27 
RESTRICTIONS 
x For aerial applications in Arizona and California, use an application rate of at least 5 gal of water per acre. 
x Maximum labeled rate of Omni Brand Ethephon 2 lb is 2.0 lb ai/A for combined uses of Omni Brand Ethephon 
2 lb (or other ethephon containing products) per acre per year. Do not exceed 2.0 lb ai/A/year. 
x Boll Opening: If cotton is to be sp indle picked do not mix with desiccants. 
x Pre-Condition for Defoliation: Omni Brand Ethephon 2 lb and desiccants should not be tank mixed unless 
desiccation is desired. The use of a defoliant before there are sufficient mature unopened bolls can reduce 
expected yield (see General Information section on how to test for boll maturity). 
When to Harvest 
Allow 7 days after a treatment with Omni Brand Ethephon 2 lb before harvesting. Harvest may commence at the point of 
optimum boll opening; however, please note that premature harvesting could reduce the boll opening advantage of the 
treatment and a delayed harvest could reduce quality and affect total yield due to lint dropping from the plant. 
 
STORAGE AND DISPOSAL 
Do not contaminate water, food, or feed by storage and disposal. 
PESTICIDE STORAGE: Store pesticide in original container. Store in a cool, dry place away from food, feed and other pesticides. 
TO CONTAIN A SPILL: If container is broken or contents have spilled, follow all precautions as outlined above and clean up immediately. 
Before starting clean up, put on the appropriate protective clot hing such as long pants or coveralls, long-sleeved shirt, appro priate 
footwear and gloves, and face shield or goggles if needed. Soak up spilled product with an appropriate material such as sand, e arth, or 
clay cat litter and dispose of waste at an approved waste disposal facility. 
PESTICIDE DISPOSAL: Pesticide wastes are acutely hazardous. Improper disposal of excess pesticide, spray mixture or rinsate is a 
violation of Federal Law. If these wastes cannot be disposed of by use according to label instructions, contact your State Pest icide or 
Environmental control Agency, or the Hazardous Waste representative at the nearest EPA Regional office for guidance. 
CONTAINER DISPOSAL: Nonrefillable container. Do not reuse or refill this container. Triple rinse container (or equivalent) promptly after 
emptying. Triple rinse as follows: Empty the remaining contents in to application equipment or a mix tank and drain for 10 secon ds after 
the flow begins to drip. Fill the container ¼ full with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a 
mix tank or store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two more 
times. Offer for recycling, if available or puncture and dispose of in a sanitary landfill or by incineration, or if allowed by state and local 
authorities, by burning. If burned, stay out of smoke. 
 
CONDITIONS OF SALE - LIMITED WARRANTY 
AND LIMITATIONS OF LIABILITY AND REMEDIES 
Read the Conditions of Sale - Warranty and Limitations of Liability and Remedies before using this product. If the terms are 
not acceptable, return the product, unopened, and the full purchase price will be refunded. 
 
The directions on this label are believed to be reliable and must be followed carefully. Insufficient control of pests and/or injury to the 
crop to which the product is applied may result from the occurrence of extraordinary or unusual weather conditions or the failure to 
follow the label directions or good application practices, all of which are beyond the control of Helena Agri-Enterprises, LLC (the 
"Company") or seller. In addition, failure to follow label directions may cause injury to crops, animals, man or the environment. The 
Company warrants that this product conforms to the chemical description on the label and is reasonably fit for the purpose referred to in 
the directions for use subject to the factors noted above which are beyond the control of the Company. To the extent consistent with 
applicable law, the Company makes no other warranties or representations of any kind, express or implied, concerning the product, 
including no implied warranty of merchantability or fitness for any particular purpose, and no such warranty shall be implied by law. 
 
To the extent consistent with applicable law, the exclusive remedy against the Company for any cause of action relating to the handling 
or use of this product shall be limited to, at Helena Agri-Enterprises, LLC’s election, one of the following: 
 
1. Refund of the purchase price paid by buyer or user for product bought, or 
2. Replacement of the product used 
 
To the extent consistent with applicable law, the Company shall not be liable and any and all claims against the Company are waived 
for special, indirect, incidental, or consequential damages or expense of any nature, including, but not limited to, loss of profits or 
income. The Company and the seller offer this product and the buyer and user accept it, subject to the foregoing conditions of sale and 
limitation of warranty, liability and remedies. 
 
© Copyright Helena Holding Company, 20XX 
 
Tilt is a registered trademark of Ciba-Geigy Corp. 
FRUITONE and AMID-THIN are registered trademarks of AMVAC Chemical Corporation 
SEVIN is a registered trademark of Bayer CropScience