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# Plentrix¿
- EPA Reg No: **100-1596**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Metalaxyl-M (10.9%); Azoxystrobin (28.2%)
- Label accepted: 2025-12-04
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01596-20251204.pdf
---
December 4, 2025
Nestor Algarin
Regulatory Product Manager
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, NC 27419
Subject: Label Amendment - Registrati on Review Mitigation for Mefenoxam and
Azoxystrobin
Product Name: Plentrix
EP A Registration Number: 100-1596
Case Number: 671142 and 671145
Application Date: November 21, 2022
Dear Nestor Algarin:
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
Metalaxyl/Mefenoxam and Azoxystrobin Interim Decisions, 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 companys 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 products 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 EPAs Office of Enforcement and Compliance
Assurance.
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
Page 2 of 2
EPA Reg. No. 100-1596
Case No. 671142 and 671145
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 Concepción Rodríguez by phone at
202-566-0820, or via email at rodriguez.concepcion@epa.gov.
S i n c e r e l y ,
Julie Javier, Team Leader
Risk Mitigation and Implementation Branch 4
Pesticide Re-Evaluation Division
Office of Pesticide Programs
ENCLOSURE: Stamped label
[Master Label]
MEFENOXAM GROUP 4 FUNGICIDE
AZOXYSTROBIN GROUP 11FFUNGICIDE
Plentrix™
Fungicide
x For control of diseases on ornamental plants; ornamental bulb, corm and tuber
crops; conifers; Christmas trees; vegetable plants and non-bearing fruit and nut
plants.
x For use in greenhouses and nurseries (including field- and container-grown plants
grown outdoors and in shade houses, lath houses and other ornamental production
structures), conifer and forest nurseries, forestry production, retail nurseries,
residential and commercial landscapes, and interior plantscapes.
x For control of diseases on vegetable transplants grown for sale to consumers
(outdoor use only).
Active Ingredients:
Azoxystrobin*: .........................................................................................................28.2%
Mefenoxam**:.......................................................................................................... 10.9%
Other Ingredients: 60.9%
Total: 100.0%
*CAS No. 131860-33-8
**CAS No. 70630-17-0
Plentrix™ is formulated as a suspension concentrate (SC) and contains 2.68 lb of
azoxystrobin and 1.04 lb of mefenoxam per gallon.
KEEP OUT OF REACH OF CHILDREN.
CAUTION/PRECAUCIÓN
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 additional precautionary statements and directions for use inside booklet.
EPA Reg. 100-1596
EPA Est.
__________
Net Contents
Dec 4, 2025
100-1596
Dec 4, 2025
100-1596
Plentrix
2
TABLE OF CONTENTS
1.0 FIRST AID
2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Humans and Domestic Animals
2.2 Personal Protective Equipment (PPE)
2.3 Environmental Hazards
DIRECTIONS FOR USE
3.0 PRODUCT INFORMATION
3.1 Integrated Pest Management (IPM)
3.2 Resistance Management
4.0 APPLICATION DIRECTIONS
4.1 Methods of Application
4.2 Application Equipment
4.3 Application Volume and Spray Coverage
4.4 Mixing Directions
4.5 Application through Irrigation Systems (Chemigation)
5.0 RESTRICTIONS AND PRECAUTIONS
5.1 Use Restrictions
5.2 Use Precautions
5.3 Spray Drift Management
6.0 ORNAMENTAL USE DIRECTIONS
6.1 Ornamentals Soil Diseases (Container-Grown Plants)
6.2 Ornamentals Soil Diseases (Plants Grown in Ground)
6.3 Ornamentals Foliar Diseases
7.0 CONIFER USE DIRECTIONS
7.1 Conifers in Nurseries
7.2 Conifers in Plantations and Forestry Production
8.0 VEGETABLE PLANT USE DIRECTIONS
8.1 Brassica, Leafy Greens Subgroup
8.2 Bulb Vegetables
8.2 Cucurbits
8.4 Fruiting Vegetables (except Cucurbits)
8.5 Herbs (Fresh and Dried)
8.6 Leafy Vegetables (except Brassica)
8.7 Tomato
9.0 STORAGE AND DISPOSAL
10.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY
Plentrix
3
1.0 FIRST AID
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 eye.
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 to an unconscious person.
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 inhaled x Move person to fresh air.
x If person is not breathing, call 911 or an ambulance, then give
artificial respiration, preferably mouth-to-mouth, if possible.
x Call a poison control center or doctor for treatment advice.
Have the product container or label with you when calling a poison control center or
doctor, or going for treatment.
SYNGENTA HOTLINE NUMBER
For 24-Hour Medical Emergency Assistance (Human or Animal) or
Chemical Emergency Assistance (Spill, Leak, Fire, or Accident),
Call
1-800-888-8372
2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Human and Domestic Animals
CAUTION
Causes moderate eye irritation. Avoid contact with eyes or clothing. Harmful if
swallowed. Wash thoroughly with soap and water after handling and before eating,
drinking, chewing gum, using tobacco, or using the toilet. Wear protective eyewear, if
appropriate.
2.2 Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
x Long-sleeved shirt and long pants
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4
x Chemical-resistant gloves made of barrier laminate, butyl rubber t 14 mils, nitrile
rubber t 14 mils, neoprene rubber t 14 mils, natural rubber t 14 mils,
polyethylene, polyvinyl chloride (PVC) t 14 mils, or Viton™ t 14 mils
x Shoes plus socks
x
In addition, mixers/loaders/applicators using mechanically pressurized handwands,
except when applying to Christmas tree farms, nursery ornamentals, landscaping, must
wear a minimum of a NIOSH-approved particulate filtering facepiece respirator with any
N, R, or P filter; OR a NIOSH-approved elastomeric particulate respirator with any N, R,
or P filter; OR a NIOSH-approved powered air purifying respirator with HE filters.
Respirator fit testing, medical qualification, and training
Using a program that conforms to OSHAs requirements (see 29 CFR Part 1910.134),
employers must verify that any handler who uses a respirator is:
x Fit-tested and fit-checked,
x Trained, and
x Examined by a qualified medical practitioner to ensure physical ability to safely
wear the style of respirator to be worn. A qualified medical practitioner is a
physician or other licensed health care professional who will evaluate the ability
of a worker to wear a respirator. The initial evaluation consists of a questionnaire
that asks about medical conditions (such as a heart condition) that would be
problematic for respirator use. If concerns are identified, then additional
evaluations, such as a physical exam, might be necessary. The initial evaluation
must be done before respirator use begins. Handlers must be reexamined by a
qualified medical practitioner if their health status or respirator style or use-
conditions change.
Upon request by local/state/federal/tribal enforcement personnel, employers must
provide documentation demonstrating how they have complied with these requirements.
2.2.1 USER SAFETY REQUIREMENTS
Follow the manufacturers instructions for cleaning/maintaining PPE. If no such
instructions for washables exist, use detergent and hot water. Keep and wash PPE
separately from other laundry.
2.2.2 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
Users should:
x Wash hands before eatin g, drinking, chewing gum, using tobacco or using the toilet.
Plentrix
5
x Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly
and put on clean clothing.
x 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.
2.3 Environmental Hazards
This product is toxic to fish and aquatic invertebrates. Azoxystrobin can be persistent
for several months or longer. For terrestrial uses: Do not apply directly to water, or to
areas where surface water is present, or to intertidal areas below the mean high water
mark. Drift and runoff may be hazardous to aquatic organisms in water adjacent to
treated areas. Do not contaminate water when disposing of equipment washwater or
rinsate.
2.3.1 GROUND WATER ADVISORY
Azoxystrobin, mefenoxam, and a degradate of azoxystrobin are known to leach through
soil to groundwater under certain conditions as a result of label use. These chemicals
may leach into groundwater if used in areas where soils are permeable, particularly
where the water table is shallow.
2.3.2 SURFACE WATER ADVISORY
This product may impact surface water quality due to runoff of rain water. This is
especially true for poorly draining soils and soils with shallow groundwater. This
product is classified as having a high potential for reaching surface water via runoff for
several months or more after application. A level, well-maintained vegetative buffer
strip between areas to which this product is applied and surface water features such as
ponds, streams, and springs will reduce the potential loading of azoxystrobin and a
degradate of azoxystrobin from runoff water and sediment. Runoff of this product will
be reduced by avoiding applications when rainfall or irrigations is expected to occur
within 48 hours.
Notify state and/or federal authorities and Syngenta immediately if you observe any
adverse environmental effects due to use of this product.
DIRECTIONS FOR USE
It is a violation of federal law to use this product in a manner inconsistent with its
labeling.
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 regulation.
Plentrix
6
FAILURE TO FOLLOW DIRECTIONS AND PRECAUTIONS ON THIS LABEL MAY
RESULT IN CROP INJURY AND/OR POOR DISEASE CONTROL
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) and restricted-entry interval. 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.
Exception: If product is drenched or soil incorporated, the Worker Protection Standard,
under certain circumstances, allows workers to enter the treated area if there will be no
contact with anything that has been treated. No restricted-entry interval (REI) is
required following a soil incorporated or a soil drench application.
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:
x Coveralls
x Chemical-resistant gloves made of barrier laminate, butyl rubber t 14 mils, nitrile
rubber t 14 mils, neoprene rubber t 14 mils, natural rubber t 14 mils,
polyethylene, polyvinyl chloride (PVC) t 14 mils, or Viton t 14 mils
x Shoes plus socks
NON-AGRICULTURAL USE REQUIREMENTS
The requirements in this box apply to uses of this product that are NOT within the scope
of the Worker Protection Standard for agricultural pesticides (40 CFR Part 170). The
WPS applies when this product is used to produce agricultural plants on farms, forests,
nurseries, or greenhouses.
Do not enter treated areas without protective clothing until sprays have dried.
Maximum usage when applying both metalaxyl- and mefenoxam-containing
products to the same crop within the same season: Do not apply more than the
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7
maximum yearly total application rate for the active ingredient as stated on the label of
the product containing the lowest yearly total on that crop.
3.0 PRODUCT INFORMATION
Read all label directions before use. All applications must be made according to the
use directions that follow.
x Plentrix is a systemic fungicide that provides control of damping off, root and stem
diseases caused by Pythium and Phytophthora spp., Rhizoctonia solani, Sclerotium
rolfsii, and Fusarium spp. and foliar diseases caused by Phytophthora spp.
(including Phytophthora ramorum), Rhizoctonia solani, and downy mildew fungi.
x Apply Plentrix as a preventative treatment prior to infection for listed plant diseases.
x Plentrix is a member of Syngentas Plant Performance™ product line and may also
improve the yield and/or quality of the crop. These additional benefits are due to the
positive effects on plant physiology. The effects may vary according to factors such
as the species, variety and environment.
3.0.1 PLANT SAFETY
Plentrix has been shown to be safe when applied at the specified rates to the
ornamentals listed in Section 6.0, conifers listed in Section 7.0, and vegetable plants
listed in Section 8.0, as well as the tolerant varieties of ornamental crabapple species
listed below. Ornamentals that are sensitive to Plentrix are listed in Section 5.1.1.
However, due to the large number of genera, species and varieties of ornamental
greenhouse, nursery and landscape plants, it is impossible to test every one for
tolerance to Plentrix. Neither the manufacturer nor the seller has determined whether
Plentrix can be used safely on genera, species, or varieties of ornamental and nursery
plants not specified on this label. The user should conduct small-scale testing at the
recommended rates to ensure plant safety prior to broad-scale commercial use on plant
genera and species not listed in this label. When using an adjuvant or tank-mix partner,
the user should conduct small-scale testing at the specified rates to ensure plant safety
prior to broad-scale commercial use.
Plentrix
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Tolerant Varieties of Ornamental Crabapple Species (Genus Malus)
Callaway Golden Raindrops Mary Potter Selkirk
Carmine
(M. atrosanguinea)
Hopa Molten Lava Sentinel
Candymint Sargent Indian Magic New Centennial Silver Moon
Christmas Holly Island Ormiston Roy Silverdrift
David Jackii (M. baccata var.
jackii)
Pink Satin Sinai Fire
Dolgo Japanese Flowering
Crabapple
(M. floribunda)
Prairie Maid Sugar Tyme
Donald Wyman Katherine Prairiefire Van Eseltine
Dorothea Lancelot Profusion White Angel
Doubloons Louisa Ralph Shay Wild crabapple
(M. coronaria)
Eleyi Malus x zumi var.
calocarpa
Red Baron Winter Gold
Evereste M. sargentii Red Jade
Eyelynn Manchurian
(M. baccata var.
mandshurica)
Sargent
3.0.2 DISEASE SUPPRESSION
If a use indicates suppression, it refers to erratic control from fair to good, or consistent
control at a level below that obtained with products registered for control.
3.1 Integrated Pest (Disease) Management (IPM)
x Plentrix should be integrated into an overall disease and pest management strategy
whenever the use of a fungicide is required.
x Cultural practices known to reduce disease development should be followed, including
the selection of varieties with disease tolerance, removal of plant debris in which
inoculum resides, and proper timing and placement of irrigation.
x Consult your local agricultural authorities for additional IPM strategies established for
your area.
x Plentrix may be used in State Agricultural Extension advisory (disease forecasting)
programs which recommend application timing based on environmental factors
favorable for disease development.
3.2 Resistance Management
MEFENOXAM GROUP 4 FUNGICIDE
AZOXYSTROBIN GROUP 11 FFUNGICIDE
For resistance management, please note that Plentrix contains both a Group
4/[mefenoxam] and Group 11/[azoxystrobin] fungicide. Any fungal population may
Plentrix
9
contain individuals naturally resistant to Plentrix and other Group 4 or Group 11
fungicides. A gradual or total loss of pest control may occur over time if these
fungicides are used repeatedly in the same fields. Appropriate resistance management
strategies should be followed.
Mefenoxam belongs to the phenylamide class of chemistry which interferes with fungal
RNA synthesis. Azoxystrobin belongs to the strobilurin class of chemistry which
disrupts cellular respiration and energy generation.
To delay fungicide resistance, take one or more of the following steps:
x Rotate the use of Plentrix or other Group 4 or Group 11 fungicides within a growing
season sequence with different groups that control the same pathogens.
x Use tank mixtures with fungicides from a different group that are equally effective on
the target pest when such use is permitted. Use at least the minimum application
rate as labeled by the manufacturer.
x Adopt an integrated disease management program for fungicide use that includes
scouting, uses historical information related to pesticide use, and which considers
host plant resistance, impact of environmental conditions on disease development,
disease thresholds, as well as cultural, biological and other chemical control
practices.
x Where possible, make use of predictive disease models to effectively time fungicide
applications. Note that using predictive models alone is not sufficient to manage
resistance.
x Monitor treated fungal populations for resistance development.
x Contact your local Syngenta Representative, retailer, or extension specialist for any
additional pesticide resistance-management and/or IPM recommendations for
specific crops and pathogens.
x For further information or to report suspected resistance contact Syngenta at 1-866-
Syngent(a) (866-796-4368). You can also contact your pesticide distributor or
university extension specialist to report resistance.
As part of a resistance management strategy:
x Apply no more than two (2) sequential drench or soil applications before rotating to a
non-Group 4 and 11 fungicide, unless otherwise stated in the specific use directions.
x Apply only one (1) foliar application before rotating to a non-Group 4 or 11 fungicide
for two sequential foliar applications before reapplying Plentrix.
x Use Plentrix in rotation or in tank mix with an effective fungicide with a different mode
of action one that provides satisfactory disease control when used alone at the
mixture rate.
x Utilize Integrated Pest Management (IPM) pr actices in your program which can help
reduce disease development and spread.
4.0 APPLICATION DIRECTIONS
Plentrix
10
4.1 Methods of Application
Plentrix may be applied as a drench, soil surface spray (broadcast or banded), or as a
stem and foliar spray. Plentrix may also be incorporated into a pre-potting growing
media for subsequent seeding or transplanting of ornamentals. Apply Plentrix at the
rates specified in Sections 6.1 and 6.2. Applications can be made by ground or via
chemigation as specified.
4.1.1 DRENCH APPLICATION
x Drench application is limited to use on Ornamentals and other listed crops.
x Prepare the Plentrix drench solution according to Section 6.1.
x Plentrix may be applied to ornamentals in outdoor nurseries, forest nurseries,
greenhouses, lath and shade houses, interiorscapes, and commercial and
residential landscapes.
x Apply enough drench solution to thoroughly wet the root zone of the plants without
leaching through the container.
Plentrix
11
4.1.2 FOLIAR AND STEM APPLICATIONS
x Plentrix may be applied as a spray to control downy mildew diseases and foliar
diseases caused by Phytophthora spp. (including Phytophthora ramorum) and
Rhizoctonia solani.
x Apply thoroughly to all parts of the foliage and stems.
4.1.3 SOIL SURFACE SPRAYS
x Apply listed use rates per 1,000 sq ft as a broadcast or banded spray to planting
media in sufficient water to reach the root zone. Irrigate within 24 hours of
application.
4.1.4 PRE-POTTING GROWING MEDIA MIX
x Blend the specified use rate of Plentrix into a sufficient quantity of water. Uniformly
mix this solution onto one (1) cubic yard of potting media.
x Uniform mixing can be accomplished by placing the potting mix in a rotating drum
and spraying the Plentrix solution onto the mix while the drum is rotating.
x It is recommended that this media treatment be prepared just prior to use. Mix only
enough for current use. Restriction: Do not store.
4.1.5 BANDED APPLICATIONS
Calculate the amount of Plentrix to apply as follows:
Band width in inches X Broadcast rate = Amount needed per acre Row width in inches Per acre
4.2 Application Equipment
Plentrix may be applied with application equipment commonly used for greenhouse and
nursery plant production. See Section 4.5 for information about chemigation
equipment.
x Spray equipment configuration should be arranged to provide accurate, uniform and
thorough drench application to the target crop and minimize potential for spray drift.
x To ensure accuracy, calibrate sprayer before each use.
x For information on spray equipment and calibration, consult spray equipment
manufacturers and/or state recommendations.
x All application equipment must be properly maintained and calibrated using
appropriate carriers.
4.3 Application Volume and Spray Coverage
x Good coverage, without runoff or leaching, of the pre-infection area (root zone, root
ball, crown, etc.) is necessary for satisfactory control.
x In situations where water volumes used are much less than 100 gallons and the
area treated is small, the following table provides the Plentrix rates to make small
Plentrix
12
quantities of solution. Refer to the plant type for the correct amount of product to
use when utilizing this table.
o For soil drench, apply the application solution to the soil surface to wet the root
area of the plants as listed in Section 6.1.
Amount of Plentrix to add to water
to make the following quantities
Rate of Plentrix
(fl oz) 10 gallons 25 gallons
0.5 1.5 ml / 0.25 tsp 3.8 ml / 0.75 tsp
1.0 3 ml / 0.5 tsp 7.6 ml / 1.5 tsp
2.0 6 ml / 1 tsp 15 ml / 3 tsp / 1 Tbsp
3.0 9 ml / 2 tsp 22.6 ml / 4.5 tsp
4.0 12 ml / 3 tsp 30 ml / 6 tsp / 2 Tbsp
4.4 Mixing Directions
x Thoroughly clean spray equipment before using this product.
x Prepare no more spray mixture than is required for the immediate operation.
x Agitate the spray solution before and during application.
x Rinse spray tank thoroughly with clean water after each days use and dispose of
pesticide rinsate by application to an already treated area.
x Avoid allowing the spray mixture to stand overnight or for prolonged periods of time
without agitation. Delayed application may cause product to settle and be difficult to
re-suspend. If this occurs, good agitation is required for a minimum of 15 minutes
before and during spray operation.
4.4.1 PLENTRIX ALONE
x Add ½-Ҁ of the required amount of water to the spray or mixing tank.
x With the agitator running, add Plentrix to the tank.
x Continue agitation while adding the remainder of the water.
x Begin application of the spray solution after Plentrix has completely dispersed into
the mix water.
x Maintain agitation until all of the mixture has been sprayed.
4.4.2 TANK-MIX PRECAUTIONS
x When using an adjuvant or tank-mix partner, the user should conduct small-scale
testing at the specified rates to ensure plant safety prior to broad scale commercial
use.
x Restriction: Do not mix with any product that prohibits such mixing
x Observe all directions for use, crop/sites, use rates, dilution ratios, precautions, and
limitations that appear on the tank-mix product label.
x Restriction: Do not exceed any labeled use rate.
x Follow the most restrictive label precautions and limitations.
Plentrix
13
It is the pesticide user's responsibility to ensure that all products are registered
for the intended use. Read and follow the applicable restrictions and limitations
and directions for use on all product labels involved in the tank mixing. Users
must follow the most restrictive directions for use and precautionary statements
of each product in the tank mixture
4.4.3 TANK-MIX COMPATIBILITY
A jar compatibility test is recommended prior to tank-mixing with other pesticides and/or
adjuvants, in order to ensure the compatibility of Plentrix with other tank-mixed
pesticide, adjuvant or fertilizer partners. The recommended procedure for conducting
jar tank-mix compatibility tests is as follows:
Compatibility Test: Always conduct a tank-mix compatibility test when mixing with
new or unknown tank-mix partners before use. The following test assumes a spray
volume of 25 gal/A. For other spray volumes, make appropriate changes in the
components. Check tank-mix compatibility using this procedure:
1. Add 1 pt of carrier (i.e., water) to be used in the spray operation to each of two
clear 1-qt jars with tight lids.
2. To one of the jars, add ¼ tsp or 1.2 milliliters of a commercially available tank-
mix compatibility agent approved for this use (¼ tsp is equivalent to 2 pt/100
gallons spray). Close and seal the lid, Invert the jar, shake, or stir gently to
ensure thorough mixing.
3. To both jars, add the proportionate amount of each tank-mix partner. If more
than one tank-mix partner is to be used, follow the recommended mixing order
listed in Section 4.4.4 by adding dry formulations (wettable powders or water
dispersible granules) first, followed by liquid flowables, capsule suspensions,
emulsifiable concentrates and finally add adjuvants. After each addition, invert
the jar, shake or stir gently to thoroughly mix. The appropriate amount of each
tank-mix partner for this test, is as follows:
4. After adding all ingredients, put lids on and seal the lids, Invert each jar 10 times
to fully mix. Let the mixtures stand for 15-30 minutes and then assess by looking
for separation, large flakes, precipitates, gels, heavy oily film on the jar, or other
signs of incompatibility. Determine if a compatibility agent is needed in the
application mixture by comparing the 2 jars. If either mixture separates, but can
be remixed readily, the mixture can be sprayed as long as good agitation is
used. If the mixtures are incompatible, test the following methods of improving
compatibility: (A) Slurry dry formulations in water before adding to the jar, or (B)
add the compatibility agent directly into liquid formulations, before addition to the
jar. If these procedures are followed but incompatibility is still observed, do not
use the tank mixture.
Plentrix
14
4.4.4 PLENTRIX IN TANK MIXTURES
x Add ½- ҀRIWKHUHTXLUHGDPRXQWRIZDWHUWRWKHVSUD\RUPL[LQJWDQN
x With the agitator running, add the tank-mix partner(s) in this order:
1. water-soluble packaging
2. wettable powders
3. wettable granules (dry flowables)
4. liquid flowables (such as Plentrix)
5. emulsifiable concentrates
6. surfactants/adjuvants.
x Allow each product to completely dissolve and disperse into the mix water before
adding the next product and continue agitation until all products are added.
x Continue agitation while adding the remainder of the water to the spray tank.
x Begin application of the mixture after all products have been completely dispersed
into the application mixture.
x Maintain agitation until all of the application mixture has been applied.
4.5 Application through Irrigation Systems (Chemigation)
4.5.1 APPLICATION DIRECTIONS FOR IRRIGATION SYSTEMS (CHEMIGATION)
x Apply this product only through overhead, hand-held, micro-irrigation systems and
motorized calibrated irrigation systems either alone or with other pesticides that are
registered for application through irrigation systems. Do not apply this product
through any other type of irrigation system.
x Dilution ratios are typically 1:100 to 1:200.
x Plant injury and/or poor disease control can result from non-uniform distribution of
treated water.
x If you have questions about calibration, you should contact State Extension Service
specialists, equipment manufacturers, or other experts.
x Do not connect an irrigation system (including greenhouse systems) used for pesticide
application to a public water system, unless the pesticide label-prescribed safety
devices for public water systems (Section 4.5.3) are in place.
x A person knowledgeable of the chemigation system and responsible for its operation,
or under the supervision of the responsible person, shall shut the system down and
make necessary adjustments should the need arise.
4.5.2 OPERATING INSTRUCTIONS
1. The system must contain a functional check-valve, vacuum relief valve, and low
pressure drain appropriately located on the irrigation pipeline to prevent water-
source contamination from backflow.
2. The pesticide injection pipeline must contain a functional, automatic, quick-closing
check-valve to prevent the flow of fluid back toward the injection pump.
3. The pesticide injection pipeline must also contain a functional, normally closed,
solenoid-operated valve located on the intake side of the injection pump and
connected to the system interlock to prevent fluid from being withdrawn from the
supply tank when the irrigation system is either automatically or manually shut down.
Plentrix
15
4. The system must contain functional interlo cking controls to automatically shut off the
pesticide injection pump when the water pump motor stops.
5. The irrigation line or water pump must in clude a functional pressure switch which will
stop the water pump motor when the water pressure decreases to the point where
pesticide distribution is adversely affected.
6. Systems must use a metering pump, such as a positive displacement injection pump
(e.g., diaphragm pump), effectively designed and constructed of materials that are
compatible with pesticides and capable of being fitted with a system interlock.
7. Do not apply when wind speed favors drift beyond the area intended for treatment.
4.5.3 SPECIFIC INSTRUCTIONS FOR PUBLIC WATER SYSTEMS
1. Public water system means a system for t he provision to the public of piped water
for human consumption if such system has at least 15 service connections or
regularly serves an average of at least 25 individuals daily at least 60 days out of the
year.
2. Chemigation systems connected to public water systems must contain a functional,
reduced-pressure zone, back-flow preventer (RPZ) or the functional equivalent in the
water supply line upstream from the point of pesticide introduction. As an option to
the RPZ, the water from the public water system should be discharged into a
reservoir tank prior to pesticide introduction. There shall be a complete physical
break (air gap) between the outlet end of the fill pipe and the top or overflow rim of
the reservoir tank of at least twice the inside diameter of the fill pipe.
3. The pesticide injection pipeline must contain a functional, automatic, quick-closing
check valve to prevent the flow of fluid back toward the injection pump.
4. The pesticide injection pipeline must contain a functional, normally closed, solenoid-
operated valve located on the intake side of the injection pump and connected to the
system interlock to prevent fluid from being withdrawn from the supply tank when the
irrigation system is either automatically or manually shut down.
5. The system must contain functional interlo cking controls to automatically shut off the
pesticide injection pump when the water pump motor stops, or, in cases where there
is no water pump, when the water pressure decreases to the point where pesticide
distribution is adversely affected.
6. Systems must use a metering pump, such as a positive displacement injection pump
(e.g., diaphragm pump) effectively designed and constructed of materials that are
compatible with pesticides and capable of being fitted with a system interlock.
7. Do not apply when wind speed favors drift beyond the area intended for treatment.
5.0 RESTRICTIONS AND PRECAUTIONS
5.1 Use Restrictions
x DO NOT apply Plentrix by air.
x DO NOT allow a drench application to leach through or spill out of the container
during or after treatment.
x DO NOT use spray equipment which has been previously used to spray Plentrix to
spray apple trees. Even trace amounts can cause unacceptable phytotoxicity to
certain apple and crabapple varieties.
Plentrix
16
x DO NOT apply Plentrix to certain crabapple or cherry trees (including flowering or
ornamental varieties such as Yoshino) due to possible phytotoxicity. (See Section
5.1.1.) Tolerant crabapple varieties are listed in Section 3.0.1.
x DO NOT apply Plentrix to the following plants:
5.1.1 ORNAMENTALS SENSITIVE TO PLENTRIX: Do not apply Plentrix to these
species or varieties.
Common Name Botanical Name
Apple Malus domestica
Crabapple - Flame variety Malus spp.
Crabapple - Brandywine variety Malus spp.
Crabapple - Novamac variety Malus spp.
Cherry, Flowering - Yoshina variety Prunus yedoensis.
Leatherleaf Fern Rumohra adianformis and other species
5.2 Use Precautions
x Applications to Ligustrum spp. and Sygonium spp. may cause stunting or chlorosis.
Responses may vary depending on environmental conditions. Test Plentrix on a
limited area to evaluate for any possible damage before proceeding with treatment
of the entire crop.
x If pathogen isolates that are resistant to Group 4 and Group 11 fungicides are
present, efficacy may be reduced for certain diseases.
x The higher rates in the rate range (when a rate range is listed) may be required
under conditions of heavy infection pressure, for highly susceptible varieties, or
when environmental conditions conducive to disease exist.
5.3 Spray Drift Management
MANDATORY SPRAY DRIFT
Groundboom Applications:
x User must only apply with the release height recommended by the manufacturer, but
no more than 4 ft above the ground or crop canopy.
x Applicators are required to use a medium or coarser droplet size in accordance with
the most current version of the American Society of Agricultural and Biological
Engineers Standard 572 (ASAE S572).
x Do not apply when wind speeds exceed 15 mph at the application site.
x Do not apply during temperature inversions.
Plentrix
17
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.
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.
BOOM HEIGHT Ground Boom
Use the lowest boom height that is compatible with the spray nozzles that will provide
uniform coverage. For ground equipment, the boom should remain level with the crop
and have minimal bounce.
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.
Plentrix
18
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.
6.0 ORNAMENTAL USE DIRECTIONS
6.1 Ornamentals Soil Diseases (Container-Grown Plants)
FOLIAGE PLANTS (EXCEPT PHILODRENDRON AND POTHOS)
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 0.5 1.3 fl oz per
100 gallons.
Apply 1.5 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
FOLIAGE PLANTS PHILODENDRON
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 1.5 2.0 fl oz per
100 gallons.
Apply 1.5 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 4 weeks if needed.
FOLIAGE PLANTS POTHOS
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 0.5 fl oz per 100
gallons.
Apply 1.5 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 3 months if needed.
HERBACEOUS PLANTS, FLOWERING PLANTS, FLOWERS GROWN FOR SEED, GROUND COVERS,
ORNAMENTAL GRASSES AND SUCCULENTS
Target Disease Use Rate
Application
Timing Use Directions
Plentrix
19
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 0.5 fl oz per 100
gallons.
Apply 1 pt drench
solution per sq ft of
surface area.
Apply as a drench
at seeding or to
young seedlings or
liners.
Make a single drench application,
applying sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Mix 1.0 2.0 fl oz per
100 gallons.
Apply 1.0 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 4 weeks if needed.
Mix 0.25 fl oz/cu yd of
media
Mix into growing
media prior to
transplanting.
Dilute Plentrix into a sufficient
quantity of water which allows
thorough mixing of Plentrix into
growing media.
Downy mildew
(such as:
Peronospora spp.
Plasmopara spp.
Bremiella spp.
Bremia spp.)
Mix 1.0 2.0 fl oz per
100 gallons.
Apply 1.0 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 4 weeks if needed.
Suppression
Powdery mildew
Rust
Mix 1.3 2.0 fl oz per
100 gallons.
Apply 1.0 2.0 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 4 weeks if needed.
POT AND BEDDING PLANTS (ANNUALS AND PERENNIALS); BULB, CORM AND TUBER CROPS (EXCEPT
EASTER LILY); BREEDING CROPS AND CUT FLOWERS
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 0.5 fl oz per 100
gallons.
Apply 1 pt of drench
solution per sq ft of
surface area.
Apply as a drench
at seeding or to
young seedlings or
liners.
Make a single drench application,
applying sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Apply 2.0 fl oz/1,000 sq
ft
Apply as a soil
surface spray after
transplanting.
Apply as a broadcast or banded
spray to the surface of planting
media in sufficient water to reach
the root zone. Irrigate with ½ inch of
water within 24 hours.
Mix 1.0 2.0 fl oz per
100 gallons.
Apply 1 - 2 pt of drench
solution per sq ft of
surface area.
Apply as a drench
at transplanting.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply drench after 4 weeks if
needed.
Mix 0.25 fl oz/cu yd of
media
Mix into growing
media prior to
transplanting.
Dilute Plentrix into a sufficient
quantity of water which allows
thorough mixing of Plentrix into
growing media.
Downy mildew
(such as:
Peronospora spp.
Plasmopara spp.
Mix 0.5 fl oz per 100
gallons.
Apply as a drench
at seeding or to
young seedlings or
liners.
Make a single drench application.
Apply sufficient drench solution to
thoroughly wet the root zone of the
Plentrix
20
Bremiella spp.
Bremia spp.)
Apply 1 pt of drench
solution per sq ft of
surface area.
plants without leaching through the
container.
Mix 0.5 fl oz per 100
gallons.
Apply 1 pt of drench
solution per sq ft of
surface area.
Apply as a drench
at transplanting.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply drench after 4 weeks if
needed.
BULB CROPS EASTER LILY
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 1.3 2.5 fl oz per
100 gallons.
Apply 1.5 2 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting.
Make a single drench application.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
WOODY ORNAMENTALS (EXCEPT AZALEA) AND NON-BEARING FRUIT, NUTS, AND VINES
Ornamental trees and shrubs
Evergreens (including conifers)
Non-bearing fruit trees and plants
Non-bearing nut trees
Non-bearing vines
Palms
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 2.0 2.75 fl oz per
100 gallons.
Apply 1.5 2 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply after 2 - 4 months if
needed.
WOODY ORNAMENTALS AZALEA
Target Disease Use Rate
Application
Timing Use Directions
Fusarium Root/Stem Rot
(Fusarium spp.)
Pythium Root and Stem Rot
(Pythium spp.)
Phytophthora Root/Crown
Rot
(Phytophthora spp.)
Rhizoctonia Root/Stem Rot
(Rhizoctonia solani)
Southern Blight
(Sclerotium rolfsii)
Mix 1.3 2.5 fl oz per
100 gallons.
Apply 1.5 2 pt of
drench solution per sq
ft of surface area.
Apply as a drench
at planting and
during production.
Apply sufficient drench solution to
thoroughly wet the root zone of the
plants without leaching through the
container.
Reapply drench after 2 to 4 months
if needed.
Apply 2.0 fl oz/1,000
sq ft
Apply as a soil
surface spray after
transplanting.
Apply as a broadcast or banded
spray to the surface of planting
media in sufficient water to reach
the root zone. Irrigate with ½ inch of
water within 24 hours.
USE RESTRICTIONS
Plentrix
21
1) Maximum Single Application Rate (Plants Grown Outdoors and Indoors): 26.2 fl oz/A/application (equal to
0.55 lb azoxystrobin and 0.21 lb mefenoxam per acre)
2) Minimum Application Interval: 4 weeks for those ornamentals where re-application may be applied; a
minimum of 3 months for Pothos
3) Maximum Annual Rate (Crops Grown Outdoors): 238.8 fl oz/A/year
a. Do not apply more than 5.0 lb ai/A/year of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/year of mefenoxam-containing products.
4) Maximum Annual Rate (Crops Grown Indoors): 238.8 fl oz/A/crop
a. Do not apply more than 5.0 lb ai/A/crop of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/crop of mefanoxam-containing products.
6.2 Ornamentals - Soil Diseases (Plants Grown in Ground)
Target Pathogen
Use Rate
(fl oz/1,000 row feet) Application Timing Use Directions
Fusarium spp.
Pythium spp.
Phytophthora spp.
Rhizoctonia solani
Sclerotium rolfsii
0.5 fl oz/
1000 row ft
Apply at planting in
furrow or banded
before the propagated
units (seed, seed
pieces, bulbs, or
corms) are covered by
soil.
Apply product as an in-
furrow or banded
application in 3-15 gallons
of water per 1,000 row-
feet.
Mount the spray nozzle to
allow the spray mixture to
be applied directly into the
furrow.
See Section 4.1.5 for
additional information
about banded applications.
USE RESTRICTIONS
1) Maximum Single Application Rate: 26.2 fl oz/A/application (equal to 0.55 lb azoxystrobin and 0.21 lb
mefenoxam per acre) [Note: Maximum single application rate is calculated based on 10” row spacing.]
2) Maximum Annual Rate: 238.8 fl oz/A/year
a. Do not apply more than 5.0 lb ai/A/year of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/year of mefenoxam-containing products.
Plentrix
22
6.3 Ornamentals Foliar, Crown and Stem Diseases
HERBACEOUS ORNAMENTALS
Breeding crops
Bulb crops
(including Calla Lilies, Easter Lilies,
Gladiolas and Caladiums)
Cut flowers
Flowering plants
Flowers grown for seed
Foliage Plants
Ground covers
Ornamental Grasses
Pot and bedding plants (annual and
perennials)
Succulents
Target Disease Use Rate
Application
Timing Use Directions
Aerial Blight
(Rhizoctonia solani)
Downy mildew
(such as:
Peronospora spp.
Plasmopara spp.,
Bremiella spp.
Bremia spp.)
Phytophthora spp.
(including P. ramorum)
1.0 fl oz per 100
gallons
Apply to young
seedlings or liners.
Spray seedlings or liners thoroughly to
ensure good coverage.
1.0 2.0 fl oz per
100 gallons
Apply to
transplants or
established plants
during production.
Spray plants thoroughly to ensure good
coverage.
Apply prior to disease development or
at the first indication of disease.
WOODY ORNAMENTALS
Evergreens (including conifers)
Non-bearing fruit trees
Non-bearing nut trees
Non-bearing vines
Ornamental tree and shrubs
Palms
Succulents
Target Disease Use Rate
Application
Timing Use Directions
Aerial Blight
(Rhizoctonia solani)
Downy mildew
(such as:
Peronospora spp.
Plasmopara spp.,
Bremiella spp.
Bremia spp.)
Phytophthora spp.
(including P. ramorum)
2.0 2.75 fl oz per
100 gallons
Apply to
transplants or
established plants
during production.
Spray plants thoroughly to ensure good
coverage.
Apply prior to disease development or
at the first indication of disease.
USE RESTRICTIONS
1) Maximum Single Application Rate (Plants Grown Outdoors and Indoors): 26.2 fl oz/A/application (equal
to 0.55 lb azoxystrobin and 0.21 lb mefenoxam per acre)
2) Minimum Application Interval: 4 weeks for those ornamentals where re-application may be applied; a
minimum of 3 months for Pothos
3) Maximum Annual Rate (Crops Grown Outdoors): 238.8 fl oz/A/year
a. Do not apply more than 5.0 lb ai/A/year of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/year of mefenoxam-containing products.
4) Maximum Annual Rate (Crops Grown Indoors): 238.8 fl oz/A/crop
a. Do not apply more than 5.0 lb ai/A/crop of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/crop of mefenoxam-containing products.
5) Maximum application rates for the following foliar applications with liquid products applied by
groundboom or chemigation are not to exceed:
a. Field-grown or nursery ornamentals 0.75 lb ai/A.
6) Maximum application rate for products applied with handheld equipment for foliar applications are not
to exceed:
a. Nursery ornamentals, broadcast applications - 0.0025 lb ai/gal.
b. Landscaping (plants, flowers trees, turf) - 0.0025 lb ai/gal.
7) Maximum application rates for products applied with mechanically pressurized handwand with liquid
products are not to exceed:
a. Greenhouse Ornamentals 0.0025 lb ai/gal.
Plentrix
23
7.0 CONIFER USE DIRECTIONS
7.1 Conifers in Nurseries
Target Disease Use Rate
Application
Timing Use Directions
Phytophthora root and
stem diseases
2.5 pt/A
or
0.9 fl oz/1000 sq ft
Apply to seedbeds
and plug-plantings
in the spring and
again in the fall.
Apply as a soil surface spray in at least
50 gallons of water per acre.
For best efficacy, ½ inch irrigation or
rainfall is required within 24 hours after
application. 5 pt/A
or
1.8 fl oz/1000 sq ft
Apply to 2-0
transplants in the
spring and again in
the fall.
Phytophthora foliar
diseases
2.0 fl oz/100
gallons
Apply to seedbeds
and plug-plantings.
Apply as a foliar spray until runoff.
For best efficacy, ½ inch irrigation or
rainfall is required within 24 hours after
application.
2.0 2.75 fl
oz/100 gallons
Apply to 2-0
transplants.
USE RESTRICTIONS
1) Maximum Single Application Rate (Plants Grown Outdoors and Indoors): 11.9 fl oz/A/application (equal
to 0.25 lb azoxystrobin and 0.11 lb mefenoxam per acre)
2) Minimum Application Interval: 4 weeks
3) Maximum Annual Rate (Crops Grown Outdoors): 95.5 fl oz/A/year
a. Do not apply more than 2.0 lb ai/A/year of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/year of mefenoxam-containing products.
4) Maximum Annual Rate (Crops Grown Indoors): 95.5 fl oz/A/crop
a. Do not apply more than 2.0 lb ai/A/crop of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/crop of mefenoxam-containing products.
Plentrix
24
7.2 Conifers in Plantations and Forestry Production
Target Disease Use Rate
Application
Timing Use Directions
Phytophthora root and
stem diseases
1.3 2.5 pt/A Apply to
transplants or
established plants
during production.
Applications
should be made in
early spring before
growth starts and
in the fall before
the ground
freezes.
Apply as a directed soil spray in a
minimum of 50 gallons of water,
avoiding applications to the foliage.
If applications are banded, see Section
4.1.5 for information.
Phytophthora foliar
diseases, including those
caused by Phytophthora
ramorum
2.0 4.0 fl oz/100
gallons
Apply to
transplants or
established plants
during production.
Apply as a foliar spray until runoff.
Precautions:
x Plentrix should be used in conjunction with good cultural practices. The use of Plentrix will not overcome poor
management practices, such as planting on sites that are prone to flooding or are poorly drained. Plentrix
fungicide will not revitalize trees showing moderate to severe disease symptoms.
USE RESTRICTIONS
1) Maximum Single Application Rate: 11.9 fl oz/A/application (equal to 0.25 lb azoxystrobin and 0.11 lb
mefenoxam per acre
2) Minimum Application Interval: 4 weeks
3) Maximum Annual Rate: 95.5 fl oz/A/year
a. Do not apply more than 2.0 lb ai/A/year of azoxystrobin-containing products.
b. Do not apply more than 6.0 lb ai/A/year of mefenoxam-containing products.
4) Maximum application rate for products applied with handheld equipment for foliar applications with
liquid products are not to exceed:
a. Christmas tree farm - 0.00125 lb ai/gal.
Plentrix
25
8.0 VEGETABLE PLANT USE DIRECTIONS
8.1 Brassica (Cole) Leafy Vegetables (Crop Group 5) and Turnip
Greens
Crops (including all cultivars, varieties, and/or hybrids of these)
Broccoli
Broccoli, Chinese (gai lon)
Broccoli raab (rapini)
Brussels sprouts
Cabbage
Cabbage, Chinese (bok choy)
Cabbage, Chinese (Napa)
Cabbage, Chinese mustard (gai
choy)
Cauliflower
Cavalo broccolo
Collards
Kale
Kohlrabi
Mizuna
Mustard Greens
Mustard Spinach
Rape Greens
Turnip Greens (greens only)
Target Disease Use Rate
Application
Timing Use Directions
Pythium Damping-Off and
Root Rots
(Pythium spp.)
Rhizoctonia Seedling Blight
(Rhizoctonia solani)
Seedling root rot, basal
stem rot
(Rhizoctonia
solani)
12.0 fl oz/A
or
0.25 fl oz/1,000 sq
ft
Apply after
seeding.
Apply as a soil surface spray.
Irrigate lightly after application to move
product into the root zone.
Downy Mildew
(Peronospora
parasitica)
2.0 4.0 fl oz/A
or
1.5 3.0 ml/1000
sq ft
Apply when
conditions are
favorable for
disease but before
infection.
Apply as a foliar spray.
Plentrix must be used in a tank mix with
other fungicides registered for control of
downy mildew. Apply with the full
labeled rate of the tank-mix partner
fungicide.
USE RESTRICTIONS
1) Maximum Single Application Rate (Plants Grown Indoors and Outdoors: 12.0 fl oz/A/application
2) Make only one application per crop.
3) Maximum Annual Rate:
a) Do not apply greater than 12 fl oz/A (0.25 lb ai/A of azoxystrobin-containing and 0.10 lb ai/A of
mefenoxam- containing products) to a single crop
b) When multiple crops are produced in the same production area, do not apply greater than 0.75 lb
ai/A/year of azoxystrobin-containing and 1.0 lb ai/A/year of mefenoxam-containing products
4) Pre-Harvest Interval (PHI): 21 days
Plentrix
26
8.2 Bulb Vegetables
Bulb Vegetable Crops (including all cultivars, varieties, and/or hybrids of these)
Dry Bulb
Garlic
Onions
Shallots
Green Onions
Leeks
Scallions
Shallots, fresh leaves
Green Onions (contd)
Spring onions
Welsh onions
Target Disease Use Rate
Application
Timing Use Directions
Pythium Damping-Off and
Root Rots
(Pythium spp.)
Rhizoctonia Seedling Blight
(Rhizoctonia solani)
12.0 fl oz/A
or
0.28 fl oz/1,000 sq
ft
Apply after
seeding and
before plants are
infected.
Apply as a soil surface spray.
Irrigate lightly after application to move
product into the root zone.
USE RESTRICTIONS
1. Maximum Single Application Rate: 12.0 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a. Do not apply greater than 12.0 fl oz/A (0.25 lb ai/A of azoxystrobin-containing and 0.10 lb ai/A of
mefenoxam-containing products) to a single crop.
b. When multiple crops are produced in the same producti on area, do not apply greater than 1.5 lb ai/A/year
of azoxystrobin-containing and 1.0 lb ai/A/year of mefenoxam-containing products.
4. Pre-Harvest Interval (PHI): 7 days
Plentrix
27
8.3 Cucurbit Vegetables, Crop Group 9
Crops (including all cultivars, varieties, and/or hybrids of these)
Chayote
Chinese waxgourd
Citron melon
Cucumber
Gherkin
Gourd, edible
Momordica spp.
Balsam apple
Balsam pear
Bitter melon
Chinese cucumber
Muskmelon
Cantaloupe
Casaba
Crenshaw melon
Golden Pershaw melon
Honeydew melon
Honey balls
Mango melon
Persian melon
Pineapple melon
Santa Claus melon
Muskmelon (contd)
Snake melon
True cantalouple
Pumpkin
Squash, summer
Squash, winter
Watermelon
Target Disease Use Rate
Application
Timing Use Directions
Pythium Damping-Off and
Root Rots
(Pythium spp.)
Rhizoctonia Seedling Blight
and Root Rot
(Rhizoctonia solani)
14.8 fl oz/A
or
0.34 fl oz/1,000
sq ft
Apply after
seeding and
before plants are
infected.
Apply as a soil surface spray or as a
soil treatment.
Irrigate lightly after application to move
product into the root zone.
USE RESTRICTIONS
1. Maximum Single Application Rate: 12.0 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a) Do not apply greater than 12.0 fl oz/A (0.25 lb ai/A of azoxystrobin-containing and 0.10 lb ai/A of
mefenoxam- containing products) to a single crop.
b) When multiple crops are produced in the same production area, do not apply greater than 1.5 lb ai/A/year
of azoxystrobin-containing and 1.0 lb ai/A/year of mefenoxam-containing products.
4. Pre-Harvest Interval (PHI): 7 days
Plentrix
28
8.4 Fruiting Vegetables (except Cucurbits)
Crops (including all cultivars, varieties, and/or hybrids of these)
African eggplant
Eggplant
Groundcherry
Marynia
Okra
Pea eggplant
Pepino
Pepper, bell
Pepper, chili
Pepper, cooking
Pepper, pimento
Pepper, sweet
Roselle
Scarlet eggplant
Tomatillo
Target Disease Use Rate
Application
Timing Use Directions
Crown Rot
(Phytophthora capsici)
Damping Off
(Pythium spp.)
Rhizoctonia seedling rot
(Rhizoctonia solani)
1 pt/A
or
0.37 fl oz/1,000
sq ft
Apply after
seeding and
before plants are
infected.
Apply as a soil surface spray.
Irrigate lightly after application to move
product into the root zone.
Precautions:
x May cause some yellowing of pepper leaves.
x Plants already infected with Phytophthora cannot be cured with Plentrix.
x The foliar blight phase of Phytophthora cannot be controlled with foliar applications of Plentrix.
USE RESTRICTIONS
1. Maximum Single Application Rate: 12.0 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a. Do not apply greater than 12 fl oz/A (0.25 lb ai/A of azoxystrobin- containing and 0.10 lb ai/A of
mefenoxam-containing products) to a single crop.
b. When multiple crops are produced in the same producti on area, do not apply greater than 1.0 lb ai/A/year
of azoxystrobin-containing and 1.5 lb ai/A/year of mefenoxam-containing products.
4. Pre-Harvest Interval (PHI): 7 days
Plentrix
29
8.5 Herbs (Fresh and Dried)
Crops (including all cultivars and varieties)
Angelica
Balm
Basil
Borage
Burnet
Catnip
Chamomile
Chervil (dried)
Chinese Chive
Chive
Cilantro (leaf)
Clary
Coriander (leaf)
Costmary
Curry (leaf)
Dillweed
Horehound
Hyssop
Lavender
Lemongrass
Lovage (leaf)
Marigold
Marjoram
Nasturtium
Parsley (dried)
Pennyroyal
Rosemary
Rue
Sage
Savory, Summer
Savory, Winter
Sweet Bay
Tansy
Tarragon
Thyme
Wintergreen
Woodruff
Wormwood
Target Disease Use Rate
Application
Timing Use Directions
Damping-Off
(Pythium spp.)
12 fl oz /A
or
0.28 fl oz/1000
sq ft
Apply after
seedling
emergence and
before plants Are
infected.
Apply as a soil surface spray directed to
the base of the plants.
Irrigate lightly after application to move
product into the root zone.
Basil Additional Diseased Controlled
Basil Downy Mildew
(Peronospora belbarhrii)
7.5 fl oz/5,000 sq ft Apply after
seedling
emergence and
before plants are
infected
Apply as a spray to plug production
trays in sufficient water to provide
uniform coverage.
Irrigate lightly after application to move
the product into growing media profile,
but not to the point of leaching.
USE RESTRICTIONS
1. Maximum Single Application Rate: 12.0 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a. Do not apply greater than 12.0 fl oz/A (0.25 lb ai/A of azoxystrobin- containing and 0.10 lb ai/A of
mefenoxam- containing products) to a single crop.
b. When multiple crops are produced in the same producti on area, do not apply greater than 1.5 lb ai/A/year
of azoxystrobin-containing and 1.0 lb ai/A/year of mefenoxam-containing products.
4. Pre-Harvest Interval (PHI): 21 days
Plentrix
30
8.6 Leafy Vegetables (except Brassica)
Crops (including all cultivars, varieties, and/or hybrids of these)
Amaranth
Arugula
Cardoon
Celery
Celtuce
Chervil
Chinese Celery
Chrysanthemum (Edible-Leaved)
Chrysanthemum (Garland)
Corn Salad
Cress (Garden)
Cress (Upland)
Dandelion
Dock (Sorrel)
Endive (Escarole)
Fennel, Florence (Finochio)
Lettuce (Head and Leaf)
Orach
Parsley
Purslane (Garden)
Purslane (Winter)
Radicchio (Red Chicory)
Rhubarb
Spinach
Spinach (New Zealand)
Spinach (Vine)
Swiss Chard
Target Disease Use Rate
Application
Timing Use Directions
Pythium Damping-Off and
Root Rots
(Pythium spp.)
Rhizoctonia Seedling Blight
and Root Rot
(Rhizoctonia solani)
Soilborne Diseases
Web blight, Bottom rot,
Crater rot, Root rot
(Rhizoctonia solani)
12.0 fl oz/A
or
0.28 fl oz/1,000
sq ft
Apply after
seeding and
before plants are
infected.
Apply as a soil surface spray.
Irrigate lightly after application to move
product into the root zone.
Lettuce (Head and Leaf) Additional Diseased Controlled
Downy Mildew
(Bremia lactucae)
2.0 4.0 fl oz/A
or
0.05 0.09 fl
oz/1,000 sq ft
Apply when
conditions are
favorable for
disease.
Apply as a foliar spray.
Plentrix must be used in a tank mix with
other fungicides registered for control of
downy mildew. Apply with the full label
rate of the tank-mix partner fungicide.
USE RESTRICTIONS
1. Maximum Single Application Rate (Plants Grown Indoors and Outdoors): 12.0 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a. Do not apply greater than 12.0 fl oz/A (0.25 lb ai/A of azoxystrobin- containing and 0.10 lb ai/A of
mefenoxam- containing products) to a single crop.
b. When multiple crops are produced in the same producti on area, do not apply greater than 1.5 lb ai/A/year
of azoxystrobin- containing and 1.0 lb ai/A/year of mefenoxam-containing products.
4. Pre-Harvest Interval (PHI): 7 days
Plentrix
31
8.7 Tomato
Crops (including all cultivars and varieties)
Tomato
Target Disease Use Rate
Application
Timing Use Directions
Root and Fruit Rot
(Phytophthora spp.)
Pythium Damping-Off and
Root Rots Pythium spp.)
4.7 fl oz/A
or
0.11 fl oz/1,000 sq
ft
Apply after
seeding and
before plants are
infected.
Apply as a soil surface spray.
Irrigate lightly after application to move
product into the root zone.
USE RESTRICTIONS
1. Maximum Single Application Rate: 4.7 fl oz/A/application
2. Make only one application per crop.
3. Maximum Annual Rate:
a. Do not apply greater than 4.7 fl oz/A (0.1 lb ai/A of azoxystrobin- containing and 0.04 lb ai/A of
mefenoxam-containing products) to a single crop.
b. When multiple crops are produced in the same producti on area, do not apply greater than 0.6 lb ai/A/year
of azoxystrobin- containing and 1.5 lb ai/A/year of mefenoxam-containing products
4. Pre-Harvest Interval (PHI): 7 days
Plentrix
32
9.0 STORAGE AND DISPOSAL
STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage or disposal.
Pesticide Storage
Store in original containers only. Store in a cool, dry place. Keep container closed
when not in use. Do not store near food or feed. In case of spill on floor or paved
surfaces, mop and remove to chemical waste storage area until proper disposal can
be made if product cannot be used according to the label.
Pesticide Disposal
Pesticide wastes may be 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 in proper disposal methods.
Container Handling [(less than or equal to 5 gallons)]
Non-refillable 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 and disposal. Drain for 10 seconds after the flow begins to drip. Repeat this
procedure two more times. Then offer for recycling if available or puncture and
dispose of in a sanitary landfill, or by incineration, or by other procedures approved by
state and local authorities.
Container Handling [(greater than 5 gallons)]
Non-refillable 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 the 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. Then offer for recycling if available or puncture and dispose of in a
sanitary landfill, or by incineration, or by other procedures approved by state and local
authorities.
Container Handling [(greater than 5 gallons)]
Refillable container. Refill this container with pesticide only. Do not reuse this
container for any other purpose. Cleaning the container before final disposal is the
Plentrix
33
responsibility of the person disposing of the container. Cleaning before refilling is the
responsibility of the person refilling. To clean container before final disposal, empty
the remaining contents from this container into application equipment or 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. Then offer
for recycling if available or puncture and dispose of in a sanitary landfill, or by
incineration, or by other procedures approved by state and local authorities.
CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER.
Plentrix
34
10.0 CONDITIONS OF SALE AND LIMITATION OF
WARRANTY AND LIABILITY
NOTICE: Read the entire Directions for Use and Conditions of Sale and Limitation of
Warranty and Liability before buying or using this product. If the terms are not
acceptable, return the product at once, unopened, and the purchase price will be
refunded.
The Directions for Use of this product must be followed carefully. It is impossible to
eliminate all risks inherently associated with the use of this product. Crop injury,
ineffectiveness or other unintended consequences may result because of such factors
as manner of use or application, weather or crop conditions, presence of other materials
or other influencing factors in the use of the product, which are beyond the control of
SYNGENTA CROP PROTECTION, LLC or Seller. To the extent permitted by
applicable law, Buyer and User agree to hold SYNGENTA and Seller harmless for any
claims relating to such factors.
SYNGENTA 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 referred to above, when used in accordance with directions under normal
use conditions. To the extent permitted by applicable law: (1) this warranty does not
extend to the use of this product contrary to label instructions or under conditions not
reasonably foreseeable to or beyond the control of Seller or SYNGENTA, and (2) Buyer
and User assume the risk of any such use. TO THE EXTENT PERMITTED BY
APPLICABLE LAW, SYNGENTA MAKES NO WARRANTIES OF MERCHANTABILITY
OR OF FITNESS FOR A PARTICULAR PURPOSE NOR ANY OTHER EXPRESS OR
IMPLIED WARRANTY EXCEPT AS WARRANTED BY THIS LABEL.
To the extent permitted by applicable law, in no event shall SYNGENTA be liable for
any incidental, consequential or special damages resulting from the use or handling of
this product. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE
EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE LIABILITY
OF SYNGENTA AND SELLER FOR ANY AND ALL CLAIMS, LOSSES, INJURIES
OR DAMAGES (INCLUDING CLAIMS BASED ON BREACH OF WARRANTY,
CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHERWISE)
RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHALL BE THE
RETURN OF THE PURCHASE PRICE OF THE PRODUCT OR, AT THE ELECTION
OF SYNGENTA OR SELLER, THE REPLACEMENT OF THE PRODUCT.
SYNGENTA and Seller offer this product, and Buyer and User accept it, subject to the
foregoing Conditions of Sale and Limitation of Warranty and Liability, which may not be
modified except by written agreement signed by a duly authorized representative of
SYNGENTA.
Plentrix
35
Plentrix™, the ALLIANCE FRAME,
the SYNGENTA Logo and the PURPOSE ICON
are Trademarks of a Syngenta Group Company
Viton™ is a trademark of The Chemours Company FC, LLC
©20XX Syngenta
For non-emergency (e.g., current product information), call
Syngenta Crop Protection at 1-866-796-4368.
Manufactured for:
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, North Carolina 27419-8300
Plentrix 1596 MAS 0217 AMEND-C 0519-CL jab-10/28/25
000100-01596.20190515C.PLENTRIX.AMEND.MAY2019-CL