crop-chem-docs/corpus/epa_ppls/5905-595.md

# ETHEPHON 3#

- EPA Reg No: **5905-595**
- Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP
- Signal word: Danger
- Active ingredients: Ethephon (27%)
- Label accepted: 2025-07-03
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005905-00595-20250703.pdf

---
July 3,
 2025
Jayn
e Walz
Director of Registration
Registration Department
Helena Agri-Enterprises, LLC
225 Schilling Blvd, Suite 300
Collierville, TN 38117
Su
bject: Label Amendment - Registration Review Mitigation for
Ethephon Product Name: Ethephon 3#
EPA Registration Number: 5905-595
Application Date: 03/19/2018
Decision Number: 596943
Dea
r Jayne Walz:
Th
e 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.
Sho
uld 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. 5905-595
Decision No. 596943

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

Ethephon 3# (5905-595)_0521225/ 061325 CLN 1
ETHEPHON 3#
PLANT REGULATOR
For Agricultural Use Only. Not for Residential Use.
[For Use on Cotton as a Harvest Aid] [Cotton Harvest Aid]
[For Minimizing Lodging in Barley and Wheat]
For use on Apples, Blackberries, Blueberries, Cantaloupes, Cherries, Grapes, Peppers, Pineapple,
Sugarcane (Hawaii only), Tobacco, Tomatoes, Walnuts and Turf (Golf Course only). Also, for the removal of
Dwarf Mistletoe in Ornamental Conifers and Leafy Mistletoe in Ornamental Deciduous Trees and for the
elimination of undesirable fruit on Ornamental Apple, Carob, Crabapple, and Olive trees.
ACTIVE INGREDIENT:
 Ethephon [(2-chloroethyl)phosphonic acid]* .....………………………………………………………. 2 7.0%
INERT INGREDIENTS: ...............…………………………………………………… …….................... 73.0%
 TOTAL: .................…………………………………………………………..……….................. 100.0%
*Contains 3 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.)
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.
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.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor, or going for
treatment. You may also contact:
FOR 24- HOUR EMERGENCY MEDICAL ASSISTANCE CALL: 1-800-424-9300.
FOR CHEMICAL EMERGENCY: Spill, leak, fire, exposure, or accident 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.
See inside booklet for additional precautionary statements
EPA Reg. No. 5905-595 Manufactured For:
EPA Est. No. 51036-GA-1 Helena Chemical Company
AD XXXXXX 225 Schilling Boulevard, Suite 300
NET CONTENTS_______________ Collierville, TN 38017
07/03/2025
5905-595

Ethephon 3# (5905-595)_0521225/ 061325 CLN 2

PRECAUTIONARY STATEMENTS

HAZARDS TO HUMANS AND DOMESTIC ANIMALS

DANGER. Causes irreversible eye damage. 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)

Some materials that are chemical-resistant to this product are listed below. If you want more options, follow the
instructions for category A on an EPA chemical-resistance chart.

Applicators and other handlers must wear:
x Goggles, Face shield, Safety glasses wi th front, brow and temple protection.
x Long sleeve shirt
x Long pants
x Chemical resistant gloves made of materials such as barrier laminate, butyl rubber ≥ 14 mils, nitrile rubber
≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber ≥ 14 mils, polyethylene, polyvinyl chloride ≥ 14 mils or
Viton ≥ 14 mils.
x Shoes
x Socks

Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this product's
concentrate. Do not reuse them.

USER SAFETY REQUIREMENTS
Follow manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washables exists, use
detergent and hot water. Keep and wash PPE separately from other laundry.

ENGINEERING CONTROL STATEMENTS
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets the requirements listed in the
Worker Protection Standard (WPS) for agricultural pesticides [40 CFR 170.240(d) (4-6)], the handler PPE
requirements may be reduced or modified as specified in the WPS.

USER SAFETY RECOMMENDATIONS
Wash thoroughly with soap and water after handling. Wash hands before eating, drinking, chewing gum, using
tobacco or using the toilet. Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroug hly
and put on clean clothing. Remove PPE immediately after handling this product. Wash the outside of gloves
before removing. As soon as possible, wash thoroughly and change into clean clothing.

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 mark. Do not contaminate water when disposing of equipment washwaters.

IMPORTANT: Use of Ethephon 3# other than as described on this label is prohibited. Do not exceed the rate of
Ethephon 3# per acre per year specified 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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 3


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 pesticide 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 must be avoided.

Do not plant another crop within 30 days after treatment.

Do not apply Ethephon 3# through any type of irrigation system.

[Language within brackets is optional state related text.]

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 airplanes or 75% of the rotor blade diameter
for helicopters.
x Applicators must use ½ swath displacement up wind 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.

Airblast applications:
x Direct spray into the canopy.
x Turn off outward pointing nozzles at row ends and when spraying outer rows.

SPRAY DRIFT ADVISORIES

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
x 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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 4

x Pressure - Use the lowest spray pressure recommended for the nozzle to produce the target spray volume
and droplet size.
x Spray Nozzle -Use a spray nozzle that is designed for the intended application. Consider using nozzles
designed to reduce drift.

Controlling Droplet Size- Aircraft
x Adjust Nozzles - Follow nozzle manufacturer’s 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.

Boom-less Ground Applications:
Setting nozzles at the lowest effective height will help to reduce the potential for spray drift.

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. Applicators need to be familiar with local wind patterns and
terrain that could affect spray drift.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 5

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 farms, forests, nurseries, and
greenhouses, and handlers of agricultural pesticides. It contains requirements for training, decontamination,
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 hours. The
REI is 72 hours in areas where average rainfall is less than 25 inches per year.

Reentry workers must wear:
x Goggles, Face shield, Safety glasses wi th front, brow and temple protection.
x Coveralls
x Chemical Resistant Gloves made of materials such as barrier laminate, butyl rubber ≥ 14 mils, nitrile
rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber ≥ 14 mils, polyethylene, polyvinyl chloride ≥
14 mils or Viton ≥ 14 mils.
x Shoes
x Socks

PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that
involves contact with anything that has been treated such as plants, soil or water is coveralls, chemical resistant
gloves made of any waterproof material such as Nitrile or Butyl rubber, shoes 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.

This Product:
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 APPLE, CRABAPPLE, CAROB, and OLIVE trees.

PRODUCT INFORMATION

Contact your Extension Pomologist, Farm Advisor, Horticultural Specialist or Helena Chemical Company
Representative for local recommendations on product spray volume, spray equipment and rates of application for
varying weather conditions.

APPLICATION VOLUMES AND SPRAY COVERAGE

For optimum product efficacy, thorough spray coverage is necessary. This can be influenced by type of spray
equipment, spray boom 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

Ethephon 3# (5905-595)_0521225/ 061325 CLN 6

THE MIXTURE OF THIS PRODUCT WITH AMMONIUM THIOSULFATE IS PROHIBITED AS IT MAY CREATE
TOXIC FUMES. Other than recommended on this label, this product must not be used with additives. Observe the
most restrictive of the labeling limitations and precautions of all products used in mixtures.

Upon mixture, this product must 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 must be avoided. Do not plant another crop within 30 days after treatment.

This product is corrosive. Therefore, spills of concentrated product on the aircraft or other spray equipment must 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 must be
carefully rinsed with water and detergent.

TOBACCO (Flue-Cured Only) (Not for use in California)

A foliar spray of Ethephon 3# promotes early, uniform “yellowing” of mature tobacco. Ethephon 3# reduces curing
time, allowing more efficient use of curing barn space, and increased control over harvest schedules.

Ethephon 3# increases the capacity of the curing barn by shortening the curing time and allows adjustments in
harvest schedules. Ethephon 3# can be used as a directed spray to the bottom or middle portion of the tobacco
plant or as an over-the-top spray. Ethephon 3# is not intended or recommended for use on immature tobacco.

Crop Situation Ethephon 3#
Pt/A
Specific Directions
Directed Spray Application 2 2/3 Use drop nozzles. Choose TG or OC spray tips
designed to apply 50
-60 gpa at 35-40 psi and at
tractor speed of 2-3 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 2 2/3 to 5 1/3 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 resp
ond to treatment with
Ethephon 3#.
Apply over-the-top Ethephon 3# 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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 7


RESTRICTIONS
Do not apply Ethephon 3# to immature leaves as this can result in unsatisfactory coloring, weight loss and reduced
leaf quality.
Do not allow the crop to over ripen in the field after using Ethephon 3#, 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 Ethephon 3# if rain is expected within 6 hours.
Do not harvest tobacco treated with Ethephon 3# sooner than 2 days after application.
Follow use rates listed above for labeled uses.
Do not exceed 5 1/3 pints of this product (2 lb ethephon) per acre per year.

APPLICATION TIMING
Successful results with Ethephon 3# 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 fail to yellow in 72 hours are not mature and are not ready for Ethephon
3# 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 2 2/3 teaspoons of Ethephon 3# in 1 quart of water. Apply about 1 ounce to
each test plant covering all leaves with a fine mist. Ethephon 3# will not color immature leaves.
To avoid quality loss and/or possible leaf drop, harvest any yellowed leaves prior to application. Use lower rates
under most conditions. Limit use of higher rates to cool (below 65° 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 Ethephon 3# 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 Ethephon 3# application. To determine harvest timing and avoid quality loss
or leaf drop, closely monitor treated crop and weather conditions.

CURING Ethephon 3# 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 between 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 late “coloring” and early “drying” stages of the
leaf.

Ethephon 3# 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 harvested, it may be necessary to color them for a few hours. If the leaves are completely yellow,
temperature and ventilation must be adjusted 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 procedures for curing. Since Ethephon 3# treated leaves
cure faster, treated and untreated leaves should not be cured together in the same barn.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 8

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 once-over
harvest. In addition, this will help to prolong the normal 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 Ethephon 3#
(Pt/A)
Instructions Comments
PROCESSED
TOMATOES:


1) WARM
TEMPERATURES

OR


2) EARLY TO MID-
SEASON
0.83 (13 1/3 fl
oz) to 2.2 (34
2/3 fl oz)

This product should be applied
when 5
-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 85
°F, this product can be
effective at rates as small as 0.83
Pt/A (13 1/3 fl oz/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 sh
ould 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 colo
r determined.

The stage for treatment will vary
based on Crops. Using the
specific directions on this label,
Crops may be determined during
regular observations of the area
to be treated. After treatment
and before harvest, normal
cultural practices shoul
d 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 Chemical Company
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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 9

Crop Ethephon 3#
(Pt/A)
Instructions Comments

PROCESSED
TOMATOES:

1) COOL
TEMPERATURES


OR

2) LATE SEASON

OR

3) COASTAL CROPS
2.2 (34 2/3 fl
oz) to 4.3 (69
1/3 fl oz)
This product should be applied
when 5-30% 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
-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
°F),
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 equipment should be
chosen to maximize coverage.
Crop should be harvested at
time of suitable maturity. Fruit
may ripen earlier at
temperatures above 90°F.
Natural color development may
be slowed at temperatures
below 65°F, delaying the time of
harvest.
FRESH MARKET
TOMATOES IN
CALIFORNIA

0.83 (13 1/3 fl
oz) to 3.3 (53
1/3 fl oz)

This product should be applied
when the preferred amount of
tomato fruit is mature and of a
marketable siz
e. 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 85°F), the longer pre
-
harvest interval and higher rate of
this product should be used on
late season crops. When
temperatures are over 85°F, this
product can be effective at rates
as small as 0.83 Pt/A (13 1/3 fl
oz/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.


RESTRICTIONS
[** Not currently registered for use in California.]
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

Ethephon 3# (5905-595)_0521225/ 061325 CLN 10

soil conditions or with inferior root systems. Such application, particularly under high temperatures, may cause
foliage cover to quickly diminish, resulting 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
105°F.
Sensitive plant varieties should not be treated during sustained times of temperatures over 100°F. 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.
Tank mixing of this product with spray adjuvants, sun protection whiteners, sun protection products or any other
additives is prohibited.
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.
Do not use on greenhouse tomatoes.
Pre-harvest interval is three (3) days.
Per year, do not apply more 4.3 Pt/A (69 1/3 fl oz/A) (1.63 lb ethephon) of this product per acre.

BLUEBERRIES[**]

This product, when applied as a foliar spray, will contribute to an easier and more efficient harvest by concentrating
blueberry 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 Ethephon 3#
(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)

2 2/3 to 5 1/3 This product should be
applied as
 a foliar spray at a
rate of 2 2/3 to 5 1/3 pt/A and
when air temperatures are
between 60
° and 90°F.
Spray volume should be
150
-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 gals.
First Harvest Concentration:
This product should be applied
when 15
-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 week
s
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
°F). This product may cause
a slight decrease of acidity, fruit
size, and soluble solids, as well
as a greater number of fruit with
stems.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 11

Crop Ethephon 3#
(Pt/A)
Instructions Comments


CONTROL OF BLACK
BARRENBERRY IN LOW
BUSH BLUEBERRIES IN
MAINE

2 2/3 to 5 1/3 This product should be
applied at a rate of 2 2/3 to 5
1/3
 pt/A.
GROUND APPLICATION:
Apply in roughly 100-200
gal/A.
AERIAL APPLICATION:
Apply in roughly 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 90-100% petal fall, the
lower rates of this product
should be applied. Once black
barrenberry fruit reaches a
diameter of 1/8
– 3/16 in., use
the higher rates. This stage is
usually reached 7-10 days
following the blueberry crop
reaching this stage. Once
blueberry fruit is ripe, it should
be harvested. Usually,
blueberries should be ripe 6-8
weeks following treatment.

RESTRICTIONS:
[** Not currently registered for use in California.]
Premature crops and extreme steminess may result from application of this product to cultivars not listed above.
Per season, a maximum of one application may be made.
A second application for the purposes of maturity concentration or fruit color acceleration is not permitted when
using to control barren berries in Maine.
Diminished fruit yield and defoliation may occur if plants under extreme heat or drought conditions are treated.
Per year, do not apply more than 5 1/3 pt (2 lb ethephon) of this product per acre.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 12

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, minimizes injury to trees. DO NOT USE ON CHERRIES IN CALIFORNIA.

Pacific Northwest Sweet Cherries: Dormant bud hardiness is increased and bloom is delayed when a fall
application of this product is made.

Crop Ethephon 3#
(Pt/A)
Instructions Comments
TART CHERRIES 2/3 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.

7.1 fl oz to 2/3
pt

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)
2 to 2 2/3 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.

1 1/3 to 2 Apply as a concentrate
spray. For best results,
ensure uniform coverage
when using a spray
volume of less than 100
gals/A.

INCREASED DORMANT
FRUIT BUD HARDINESS
AND DELAYED SPRING
BLOOM (Sweet Cherries
in the Pacific Northwest)
2 Treat in first two weeks of
September.

A fall application of Ethephon 3#
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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 13

Ethephon 3# (5905-595)_0521225/ 061325 CLN 14

RESTRICTIONS
Not for use on cherries in California.
Early treatment may result in unwanted premature fruit drop with attached stems.
Treatment may result in cherry tree gummosis, especially when subjected to high temperatures during and after
treatment.
Tree damage may occur if trees are treated in the year following exposure to severe gummosis.
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.
Pre-harvest interval is seven (7) days.
Treatment should occur at temperatures between 60-85°F and should not be made at temperatures over 85°F.
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.
It is necessary to maintain uniform spray coverage. Otherwise, tip dieback and gummosis may result from erratic
application of this product.
After treatment, you may observe some early yellowing and drop of leaves.
Fall Bud Hardiness Treatment: You may observe a decrease in individual fruit size and minor gummosis following
this treatment.
Per year, do not apply more than 2 2/3 pt (1 lb ethephon) of this product per acre.

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 Ethephon 3#
(Pt/A)
Instructions Comments
TABLE GRAPES (i.e.
Cardinal, Flame Seedless,
Red Malaga, and Queen)
1/3 to 1 1/3 This product should be
applied at the
 point of 5-30%
berry coloration. When
temperatures are over 85
°F,
this product can be effective
at rates of 1/3 to 1 1/3 pt/A.
Use the higher rates when
temperatures are cool, but
higher than 65
° 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 2/3 to 1 1/3 This product should be
applie
d at the point of 5-15%
berry coloration.
Conventional ground
sprayers should be used to
uniformly apply this product
to fruit clusters and vines,
using an adequate amount of
water.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 15

Crop Ethephon 3#
(Pt/A)
Instructions Comments

RAISIN PRODUCTION
(Thompson Seedless)
2/3 to 1 1/3 This product should be
applied at the point of 5-30%
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.

RESTRICTIONS
[** Not currently registered for use in California.]
Table Grapes and Tokay Grapes
Because the number of cracked fruit may increase, use of rates in excess of 2/3 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.
Pre-harvest interval is fourteen (14) days.
Per year, do not apply more than 1 1/3 pt (0.5 lb ethephon) of this product per acre.

Raisin Production (Thompson Seedless)

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.
Per year, do not apply more than 1 1/3 pt (0.5 lb ethephon) of this product per acre.


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 quality, yield size, harvest
efficiency, and minimizes injury to trees. This product will accelerate ripening and red coloration when applied along
with FRUITONE® N to control pre-harvest drop. This product will contribute to formation of flower buds and restrict
vegetative growth when applied to young trees.

Crop Ethephon 3#
(Pt/A)
Instructions Comments
FRUIT LOOSENING

1. VARIETIES MATURING
IN EARLY TO MID
-
SEASON
(maturing with McIntosh or
earlier)

2. LATE MATURING
VARIETIES IN THE
EASTERN UNITED
STATES (maturing later
than McIntosh)


1 2/3


3 1/3

This product should be applied
7
-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 60°F
and 90
°F, except under the
conditions of rising
temperatures, you may treat at
50°F. Pre-harvest intervals will

Ethephon 3# (5905-595)_0521225/ 061325 CLN 16

Crop Ethephon 3#
(Pt/A)
Instructions Comments
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 1-2
days. Fruit in good condition
can be stored in cold-air
storage.
PROMOTION OF
UNIFORM RIPENING
AND COLORING OF RED
VARIETIES WITHOUT
LOOSENING


1. VARIETIES
MATURING
EARLY TO MID-
SEASON
(maturing with
McIntosh or
earlier).
2.
LATE MATURING
VARIETIES
(maturing later than
McIntosh)


2/3 to 2 2/3


1 1/3 to 2 2/3
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
products’
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
d
elivery, 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.
THINNING AND RETURN
BLOOM


1. Majority of Varieties


2. Varieties Such as
Golden Delicious that Are
Difficult to Thin


1
 to 2 2/3


2
 to 4
This product should be applied
10-20 days following full bloom.
You may mix this product with
the following insecticides to
promote thinning: AMID
-
THIN®W, SEVIN® brand 4F
Carbaryl Insecticide, SEVIN®
brand 80 WSP Carbaryl
Insecticide, SEVIN® brand 80 S
Carbaryl Insecticide or SEVIN®
brand XLR Plus Carbaryl
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 AMID-
THIN® W or one of the SEVIN®
products listed under Specific

Ethephon 3# (5905-595)_0521225/ 061325 CLN 17

Crop Ethephon 3#
(Pt/A)
Instructions Comments
Insecticide. 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 appli
cation 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.
Directions to defeat this
disorder. Such an application
should occur 7-21 days
following full bloom. The
necessary amount of thinning
and your orchard’s biennial
history of bearing will determine
which treatment prog
ram
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”.

FLOWER BUD
DEVELOPMENT
TREATMENT

1. NONBEARING TREES


2. BEARING TREES


1 1/3 to 5 1/3


1/
3 to 2
Trees should be treated
uniformly and thoroughly up
until runoff. Trees with greater
vigor will require the higher
rate.

This product should be applied
2-4 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 2-4 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.

RESTRICTIONS
[** Not currently registered for use in California.]
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 environmental 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.
Grazing or feeding of cover crops to livestock is prohibited.
Pre-Harvest interval is seven (7) days.
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.
Per year, do not apply more than 5 1/3 pt (2 lb ethephon) of this product per acre.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 18

Ethephon 3# (5905-595)_0521225/ 061325 CLN 19

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 Ethephon 3#
(Pt/A)
Instructions Comments
USE IN CALIFORNIA 2 to 3 1/3 For spray concentration
recommendations, see the
chart below. Optimal results
will occur when spray
concentrations are between
200
-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
-95° F for
optimal results. Applications
at temperatures above 90°
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
-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
-16 days
following application. Inspect
regularly. Second shake should
occur 10
-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
-12 days
prior to preferred harvest time.

RESTRICTIONS
[** Not currently registered for use in California.]
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.
Pre-harvest interval is five (5) days.
Per year, do not apply more than 3 1/3 pt (1.25 lb ethephon) of this product per acre.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 20


Spray Preparation Chart
Application Rate Spray Volume (Gallons/A)
100 200 300 400 500
Pt/A Lb/A Concentration (ppm)
2 0.75 900 450 300 --- ---
2 2/3 1.00 600 400 300 ---
3 1/3 1.25 750 500 375 300

PEPPERS[**]

This product, when applied as a foliar spray, will accelerate uniform coloration and ripening, resulting in better
handling and packing efficiency.

Crop Ethephon 3#
(Pt/A)
Instructions Comments
PEPPERS 0.83 (13 1/3 fl oz)
to
2 2/3 pt
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°F, or have dense foliage, the
higher rate should be used. Spray
Volume: Rates between
0.83 (13 1/3 fl
oz) and 1 1/3 pt should be applied in
20 gal/A. Rates between 2 and 2 2/3 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: 10-30% 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.


RESTRICTIONS
[** Not currently registered for use in California.]
If average temperatures are anticipated to persist at or above 95°F, treatment should be avoided. Treatments
should not be made at temperatures above 100°F. Such treatments will cause additional foliage yellowing,
immature fruit abscission, ripening and defoliation.
Treatments should also not be made if average temperatures are anticipated to persist below 60°F as such
conditions may diminish product efficacy.
Application of this product may cause minor leaf aging and yellowing.
Pre-harvest interval is five (5) days.
Per year, do not apply more than 2 2/3 pt (1 lb ethephon) of this product per acre.

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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 21


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 Ethephon 3#
(Pt/A)
Instructions Comments
APPLICATION IN
OREGON AND
WASHINGTON (Cultivars
Chehalem Thornless and
Evergreen)

3 1/3 to 5 1/3 This product should be
applied: 1) As a foliar
spray, 2) at temperatures
between 60
-90°F, 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.


RESTRICTIONS
Because of the potential for significant fruit drop, this product should not be applied to more fruit than is possible to
harvest within three days.
This product should be used only as directed and on strong, healthy plants. Improper use or use on diseased or
otherwise damaged plants will result in a decrease in berry size.
Pre-harvest interval is three (3) days.
Per year, do not apply more than 5 1/3 pt (2 lb ethephon) of this product per acre.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 22


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 Ethephon 3#
(Pt/A)
Instructions Comments
ARIZONA, CALIFORNIA,
TEXAS
2 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
-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 Ethephon
3
# 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 l
evel 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
frequently. 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.

RESTRICTIONS
[** Not currently registered for use in California.]
Do not apply this product at low nighttime temperatures (below 60°F).
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.
Pre-harvest interval is two (2) days.
Per year, do not apply more than 2 pt (0.75 lb ethephon) of this product per acre.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 23

PINEAPPLE AND SUGARCANE[**]
PINEAPPLE FLOWER INDUCTION: Application of Ethephon 3# will induce uniform flower initiation of pineapple
plants.
PINEAPPLE MATURITY CONCENTRATION: Application of Ethephon 3# will stimulate uniform shell color of
pineapple fruit.
SUGARCANE FLOWER PREVENTION: A foliar spray of Ethephon 3# will reduce or prevent flowering of
sugarcane.
SUGARCANE BIOMASS INCREASE: Ethephon 3# application to prevent flowering can result in increased
biomass accumulation and increased recoverable sugars.

Crop Ethephon 3#
(Pt/A)
Timing of
Application
Instructions Comments
PINEAPPLE

Flower

Induction

Ethephon 3# applied
to pineapple plants
will stimulate
uniform initiation of
flowering.

2 2/3 to 5 1/3 "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
Ethephon 3#. Do
not harvest
pineapples treated
with Ethephon 3#
sooner than 2 days
after the last
application.

PINEAPPLE

Maturity
Concentration


Ethephon
3#
application will
stimulate uniform
shell color
development.
1 1/3 to 5 1/3 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
ripening has slowed.
SUGARCANE
(for use in Hawaii
only)

Flower Prevention
Ethephon
3#
application will
prevent or reduce
flowering and pithy
tissue formation.

Biomass Increase
Ethephon
3# used
to prevent flowering
can also result in
increased biomass
accumulation and
recoverable sugar
yield.
1 1/3 Just prior to flower
initiation.
Apply by fixed wing
aircraft or helicopter
using equipment
de
signed 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 Ethephon
3#
sooner than 2
months after the last
application. Do not
graze sugarcane
forage treated with
Ethephon
3#.

RESTRICTIONS
[** Not currently registered for use in California.]
* For pineapple do not exceed 8 pt of this product (3 lb ethephon) per acre per year.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 24

* For sugarcane do not exceed 1 1/3 pt of this product (0.50 lb ethephon) per acre per year.

COTTON

A foliar spray of Ethephon 3# will accelerate opening of mature unopened cotton bolls and enhance defoliation
which can result in earlier harvest with an increased recoverable yield. Ethephon 3# treatment allows increased
efficiency from a once-over harvest.
SPRAY PREPARATION
Add 1/2 to 3/4 of the required amount of water to the spray tank. Start agitation. Add the required amount of
Ethephon 3#, and the remaining amount of water. Prepare only as much spray solution as can be used on the day
of mixing. Do not allow spray solution to stand overnight. Do not spill the concentrated product on spray equipment,
or any airplane parts.
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.
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.
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.
ETHEPHON 3# - ALONE
USE EXPECTED
CONDITIONS
ETHEPHON 3# RATE
PER ACRE
ONE
GALLON
ETHEPHON
3# TREATS
SPRAY VOLUME
TIMING GROUND AIR
ETHEPHON
3#
Hot and dry
80qF or higher

 2 - 2 2/3
pt

(32 - 43 fl
oz)
0.75-1.0
lb ai

3.0-4.0
Acres


10-25
gallons
3-5
gallons
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

2 2/3 - 4 pt

(43 - 64 fl
oz)

1.0-1.5
lb ai
2.0-3.0
Acres

10-25
gallons

3-5
gallons
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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 25

Cool but
Above 65° F
Or
Rank cotton

 3 1/3 - 5
1/3 pt

(54 - 86 fl
oz)
1.25-2.0
lb ai
1.5-2.4
Acres


10-25
gallons
3-5
gallons
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.

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 Ethephon 3#. In some cases slight reduction in boll opening response has been
observed when tank mixes with defoliants were used.
Ethephon 3# can be applied in a tank mix with an EPA approved defoliant for consistent defoliation and regrowth
inhibition. Ethephon 3# 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.
DO NOT MIX WITH DESICCANTS IF COTTON IS TO BE SPINDLE HARVESTED.
DO NOT TANK MIX ETHEPHON 3# WITH DEFOLIANTS CONTAINING SODIUM CHLORATE BECAUSE THIS
RESULTS IN THE FORMATION OF HYPOCHLOROUS ACIDS WHICH UPON HEATING EMIT TOXIC
CHLORINE FUMES.
ETHEPHON 3# - TANK MIX
USE EXPECTED
CONDITIONS
ETHEPHON 3# RATE
PER ACRE
ONE
GALLON
ETHEPHON
3# TREATS
SPRAY VOLUME
TIMING GROUND AIR
ETHEPHON
3#
+
DEFOLIANT
(tribufos,
thidiazuron,
thidiazuron +
diuron)
and other EPA
approved
DESICCANTS.
Dry and
75 °F or higher

2 - 2 2/3 pt

(32 - 43 fl
oz)

0.75-1.0
lb ai
3.0-4.0
Acres

10-25
gallons
3-5
gallons
Apply 4 to 7 days prior to
Ethephon 3# boll opening
application. To be used as
a sequential treatment
with, not in place of
Ethephon 3# boll opening
treatment.
High soil
moisture
Or
High fertility
level
Or
Rank Cotton
2 - 5 1/3 pt

(32 - 86 fl
oz)

0.75-2.0
lb ai
1.5-4.00
Acres

10-25
gallons
3-5
gallons
Apply 4 to 7 days prior to
Ethephon 3# boll opening
application. To be used as
a sequential treatment
with, not in place of
Ethephon 3# boll opening
treatment.

ETHEPHON 3# - PRECONDITIONER
USE EXPECTED
CONDITIONS
ETHEPHON 3# RATE
PER ACRE
ONE
GALLON
ETHEPHON
3# TREATS
SPRAY VOLUME TIMING
GROUND AIR
Preconditioner
for defoliation
Hot, dry,
above 80°F

2/3 pt

(11 fl oz)

0.25
lb ai
12
Acres

10-25
gallons
3-5
gallons
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
 2/3-1 1/3
pt
(11- 21 fl
oz)
0.25-0.5
lb ai
6-12
Acres


Pretreatment With Defoliants Prior to Ethephon 3# Treatment
If the cotton is overly rank or laying down in the middles and good spray coverage of the bolls with Ethephon 3# is
difficult, a pretreatment with defoliants will be useful to improve boll coverage with Ethephon 3#. Use dosage rates

Ethephon 3# (5905-595)_0521225/ 061325 CLN 26

of Ethephon 3# recommended for boll opening. Read and observe all appropriate label use directions and
precautions for the defoliant used.
**NOTE: For California and Arizona use a volume of no less than 5 gallons per acre for aerial applications.
Boll Maturity
A boll is mature when it is too hard to be dented when squeezed between thumb and fingers, too hard to be sliced with a
sharp knife, and when the seed coat becomes light brown in color.
Use Limitations
x Do not exceed a maximum of 2.0 lb ai/A for combined uses of Ethephon 3# (or other ethephon containing products)
per acre per year.
x Boll Opening: Do not tank mix Ethephon 3# with a desiccant if the cotton is to be spindle harvested.
x Pre-Condition for Defoliation: Do not tank mix Ethephon 3# with desiccants unless plant desiccation is required. Do
not use a defoliant before there are sufficient mature unopened bolls to produce the desired yield (see General
Information section on how to test for boll maturity).
When to Harvest
Do not harvest cotton sooner than 7 days after a treatment with Ethephon 3#. Observe the treated crop and harvest when
optimum boll opening has been reached. Too early harvest might reduce the full advantage of the treatment and too late a
harvest may result in reduced quality and loss of lint, which will drop from the plant.
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, insect or
moisture as a decrease in yield or injury to crops may occur. Application of a tank mix of this product with Tilt® may
cause a decrease in yield or flag leaf burn.

Assessment of economics and plant conditions should guide treatments of insecticides and fungicides, which may
or may not match with treatment timing of this product.

RESTRICTIONS
Ethephon 3# does not require the supplemental use of adjuvants, surfactants or wetting agents in most cases.
Ethephon 3# should not be mixed with herbicides or liquid nitrogen solutions such as UAN 28% or 32%.
This product should not be supplemented with adjuvants, surfactants or wetting agents or tank mixed with nitrogen
solutions or herbicides.
Do not apply through any type of irrigation system.
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 extreme temperatures within five days following 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, harvest delays, this product should not be used on late-
seeded crops in short-season growing areas.
Secondary tillers may increase following application of this product to certain spring barleys. This may particularly
occur if crop is subject to temperature or moisture stress.
Use of this product on Azure barley or Tyler wheat is prohibited.
This product should not be applied when rain will likely occur within six hours.
Grazing or foraging by livestock or cutting for hay or silage are prohibited. Mature straw at normal harvest may be
consumed by animals.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 27

A 30-day plant-back interval is required.

TREATMENT DECISION GUIDE
Shortly before application of this product, the fields to be treated should be checked to determine the chance
lodging will occur. This product should only be applied under these circumstances:

Lodging is anticipated and likely will result in a considerable decrease in grain quality, harvest efficiency, and
recoverable yield.
There is no disease stress or insect pressure on the crop.
There is little to no chance of crop stress following application because of adequate irrigation or soil moisture.
Extreme temperature fluctuations (as described above) are not anticipated to occur within five days following
application.
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 slightly visible to the boot stage. Apply prior to awn
emergence or sheath split. These visual cues correspond to Feekes-Large Scale 8-10 and Zadok’s Code 37-
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 gals/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 gals/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 gals/A of water.

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 pint/A rate
should be used on more responsive varieties. Per year, do not apply more than 1 1/3 pints (0.5 lb ethephon) of this
product per acre. Pre-harvest interval is forty (40) days.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 29

MISTLETOE REMOVAL[**]

DWARF AND LEAFY MISTLETOE REMOVAL: A foliar spray of Ethephon 3# will remove dwarf mistletoe shoots in
ornamental conifers and leafy mistletoe from ornamental deciduous trees.
Crop Ethephon 3#
(Pt/A)
Instructions Comments
DWARF MISTLETOE ON
ORNAMENTAL
CONIFERS

1 1/3 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
conjunctio
n with
sylvicultural mistletoe
management will prevent
spread of the mistletoe
parasite to other parts of
the tree and other trees.
DOUGLAS FIR,
ORNAMENTALS

2/3 pt per 20 gal Mature needle drop, that
normally occurs in the fall,
may be hastened by the
u
se of Ethephon 3#.
Applications of higher
rates on Douglas fir may
result in excessive needle
drop.
LEAFY MISTLETOE ON
ORNAMENTAL
DECIDUOUS TREES

2 2/3 pt per 20 gal Make applications after
fall leaf drop through mid-
winter. For effective
removal, all mis
tletoe
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 labeled application
window.
Large mistletoe infections
and mistletoe found in
mesquite may be difficult
to control with a single
application and
retreatment may be
necessary.

[** Not currently registered for use in California.]

Ethephon 3# (5905-595)_0521225/ 061325 CLN 30


FRUIT ELIMINATION [**] (Ornamental Use Only)

UNDESIRABLE FRUIT ELIMINATION: A foliar spray of Ethephon 3# will reduce or eliminate undesirable fruit
development on apple, crabapple, carob and olive trees.
Crop Ethephon 3#
(Pt/A)
Instructions Comments
APPLES, CRABAPPLES 0.33 (5 1/3 fl oz) to 0.5 (8
fl oz)

Apply as a foliar spray at
the flower bud to full
bloom stage, prior to fruit
set. Wet foliage
thoroughly. Over
application of Ethephon
3# 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 fru
it
elimination will not be
satisfactory.
CAROB
(Certonia siliqua)
0.25 (4 fl oz) Apply as a foliar spray.
Wet all foliage thoroughly.
Amount of spray will
depend on tree size.

OLIVE
(
Olea auropaea)
0.5 (8 fl oz)
[** Not currently registered for use in California.]

TURF (Golf Course Only)

Ethephon 3# 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 golf
course turfgrass. Ethephon 3# 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 Ethephon 3# is not necessary.
Ethephon 3# is rainfast within 2 hours. Do not allow entry into treated area until Ethephon 3# has dried. For
maximum performance, delay mowing until the day after application.

Precautions and Restrictions:
x Use is permitted on golf course turf only. Do not use on residential turf or lawns, institutional turf, parks,
recreational fields, or sod farms.
x Use on golf courses is limited to tees, greens, and fairways only.
x Do not apply more than 3.4lbs 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.
x Do not treat golf course turfgrass with poor root systems or growing under stress due to poor soil
conditions, drought, disease, or insect damage.
x Do not use Ethephon 3# in areas where excessive thatch has accumulated.
x Scalping may occur on creeping bentgrass cultivars af ter more than 2 applications of Ethephon 3# for Poa
seedhead suppression.
x Ethephon 3# has been used successfully on many bent grass cultivars. Tolerance testing should be done in
new cultivars before extensive use.
x Do not mix with ammonium thiosulfate. This tax mix may result in the formation of toxic fumes.

Seedhead Suppression: Foliar application of Ethephon 3# will provide suppression of Poa annua and white clover
seedheads. Make the initial application prior to the emergence of new seedheads. A period of 2-3 weeks after
application is required for maximum performance. Repeat applications may be made to predominately Poa annua

Ethephon 3# (5905-595)_0521225/ 061325 CLN 31

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
CloverSeedhead
Suppression
Reapplication
interval: 2
weeks or greater
for all labeled
golf course trufgrass
Golf course turfgrass including
Greens, Tees, and Fairways

Golf Course
Turfgrass including
Bentgrass, Kentucky Bluegrass,
Perennial Ryegrass, Tall and Fine
Fescue, and

Bermudagrass
3 ⅓ 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 Ethephon 3# at 3 1/3 fl oz/1,000 sq ft and trinexapac-ethyl-containing products at 0.125 or 0.25 fl
oz/1,000 sq ft can be used to promote seedhead suppression as well as golf course turfgrass quality. Multiple
applications of the tank mix combination may be needed. The number of applications must not exceed labelled
rates or timings for either product applied once. Follow the recommendation on each product label for the most
restrictive application interval for each golf course turfgrass. Application of this tank mixture during frost periods
may cause temporary turf discoloration.

Growth Suppression: An application of Ethephon 3# slows the growth of golf course turfgrass, thus reducing the
required frequency of mowing and the volume of clippings collected. For best golf course turfgrass growth
regulation, apply Ethephon 3# when daytime air temperatures are 65°F and rising. Ethephon 3# should only be
applied once golf course turfgrass mowing heights have been established for the season. Avoid multiple
applications of Ethephon 3# in areas where excessive thatch has accumulated.

APPLICATION SITES RATE SPRAY VOLUME
Golf Course Turfgrass Growth
Regulation
 Reapplication intervals:
• Kentucky Bluegrass - 7 weeks
• Perennial Ryegrass -7 weeks
• Tall/Fine Fescue -4 weeks
• Bentgrass -4 weeks
Golf course turfgrass
including Greens*,

Tees*, and Fairways

Golf Course Turfgrass
Including Bentgrass,
Kentucky Bluegrass,
Perennial Ryegrass,

Tall and Fine Fescue
3 ⅓ fl oz/1,000 sq ft 1.0 - 2.0 gal/1,000 sq ft


NOTE: Since Ethephon 3# 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.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 32


STORAGE AND DISPOSAL

Do not contaminate water, food, or feed by storage and disposal.

PESTICIDE STORAGE: Store pesticide in original container. 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 clothing such as long pants or coveralls, long-sleeved shirt, appropriate footwear and gloves, and face
shield or goggles if needed. Soak up spilled product with an appropriate media such as sand, earth, 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 Pesticide or Environmental control Agency, or the Hazardous Waste representative
at the nearest EPA Regional office for guidance.

CONTAINER HANDLING:
Containers equal to or less than 5 gallons: 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
into application equipment or a mix tank and drain for 10 seconds 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 other processes
allowed by state and local authorities.
Containers greater than 5 gallons: 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 into
application equipment or a mix tank. Fill the container ¼ full with water. Replace and tighten closures. Tip container
on its side and roll it back and forth, ensuring at least one complete revolution, for 30 seconds. Stand container on
its end and tip it back and forth several times. Turn the container over onto its other end and tip it back and forth
several times. Empty the rinsate into application equipment or a mix tank or store rinsate for later use or disposal.
Repeat this procedure two more times.
Offer for recycling, if available, or puncture and dispose of in a sanitary landfill, or by other processes allowed by
state and local authorities..

REFILLABLE CONTAINERS: Refill this container with pesticide only. Do not reuse this container for any other
purpose. Cleaning the container before final disposal is the responsibility of the person disposing of the container.
Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal, empty the
remaining contents from this container into application equipment or a mix tank. Fill the container about 10 percent
full with water. Agitate vigorously or recirculate water with the pump for 2 minutes. Pour or pump rinsate into
application equipment or rinsate collection system. Repeat this rinsing procedure two more times. Offer for
recycling, if available, or puncture and dispose of in a sanitary landfill, or by other processes allowed by state and
local authorities.

Ethephon 3# (5905-595)_0521225/ 061325 CLN 33


Warranty and Disclaimer Statement
The directions for use of this product are believed to be adequate and must be followed carefully. However, it is
impossible to eliminate all risks associated with the use of this product. Such risks may arise from weather
conditions, soil factors, off-target movement, unconventional farming techniques, the presence of other materials,
the manner of use or application, or other unknown factors, all of which are beyond the control of Helena Chemical
Company and can cause crop injury, injury to non-target crops or plants, ineffectiveness of the product, or other
unintended consequences. All such risks shall be assumed by the user or buyer. Helena Chemical Company
warrants that this product conforms to the chemical description on the label and is reasonably fit for the purposes
stated in the Directions for Use, subject to the inherent risks described above, when used in accordance with the
Directions for Use under normal conditions. This warranty does not extend to the use of this product contrary to
label instructions or under conditions not reasonably foreseeable to Helena Chemical Company, and is subject to
the inherent risks described above.

TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, HELENA CHEMICAL COMPANY DISCLAIMS ALL
OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT CONSISTENT WITH APPLICABLE LAW,
HELENA CHEMICAL COMPANY MANUFACTURER, AND SELLER DISCLAIM AND SHALL NOT BE LIABLE
FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE, HANDLING, APPLICATION, STORAGE, OR DISPOSAL OF THIS PRODUCT OR FOR DAMAGES IN THE
NATURE OF PENALTIES, AND THE USER AND BUYER WAIVE ANY RIGHT THAT THEY MAY HAVE TO
SUCH DAMAGES. NO AGENT, REPRESENTATIVE OR EMPLOYEE OF HELENA CHEMICAL COMPANY IS
AUTHORIZED TO MAKE ANY WARRANTY, GUARANTEE OR REPRESENTATION BEYOND THOSE
CONTAINED HEREIN OR TO MODIFY THE WARRANTIES CONTAINED HEREIN.

TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR
BUYER, AND THE TOTAL LIABILITY OF HELENA CHEMICAL COMPANY, MANUFACTURER, AND SELLER,
SHALL BE LIMITED TO THE PURCHASE PRICE PAID, OR AT HELENA CHEMICAL COMPANY’S ELECTION,
THE REPLACEMENT OF THE PRODUCT.


SEVIN® is a registered trademark of Bayer
Amid-Thin® W & Fruitone® N are registered trademarks of AMVAC Chemical Corporation.