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# ACTIGARD 50WG PLANT ACTIVATOR
- EPA Reg No: **100-922**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Acibenzolar-s-methyl (50%)
- Label accepted: 2021-11-02
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-00922-20211102.pdf
---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, DC 20460
Fast Track Label Acceptable v.20150320
OFFICE OF CHEMICAL SAFETY
AND POLLUTION PREVENTION
November 2, 2021
Becca Haynie
Regulatory Fungicide Product Manager
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, NC 27419
Subject: Label Amendment Revise Typogr aphical Errors and Rate Correction for
Spinach Restriction
Product Name: Actiga rd 50WG Plant Activator
EPA Registration Number: 100-922
Application Date: May 1, 2020
Decision Number: 562996
Dear Becca Haynie:
The amended label referred to above, submitted in connection with registration under the Federal
Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable. This approval
does not affect any conditions that were previously imposed on this registration. You continue to
be subject to existing conditions on your registration and any deadlines connected with them.
A stamped copy of your labeling is attached for your records. This labeling supersedes all
previously accepted labeling. 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 18 months
from the date of this letter. After 18 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.
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 FIFRA 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.
Your release for shipment of the product constitutes acceptance of these conditions. If these
conditions are not complied with, the registration will be subject to cancellation in accordance
Page 2 of 2
EPA Reg. No. 100-922
Decision No. 562996
with FIFRA section 6. If you have any questions, please contact Derek Corbin by phone at 703-
347-8903, or via email at Corbin.Derek@epa.gov.
Sincerely,
Debra Rate, Ph.D.,
Senior Regulatory Specialist
Invertebrate & Vertebrate Branch 2
Registration Division (7505P)
 
Office of Pesticide Programs
Attachment
Actigard® 50WG Plant Activator
Active Ingredient:
Acibenzolar-S-methyl1: ........................................................................................................ 50.0%
Other Ingredients: 50.0%
Total: 100.0%
1CAS No. 135158-54-2
Actigard 50WG Plant Activator is formulated as a water-dispersible granule and contains 0.5
lb ai acibenzolar-S-methyl per pound of product.
KEEP OUT OF REACH OF CHILDREN.
CAUTION
See additional precautionary statements and directions for use inside booklet.
EPA Reg. No. 100-922
EPA Est.
___________
Net Weight
[Batch Code: _____ ] (For nonrefillables only.)
ACIBENZOLAR-S-METHYL GROUP P01 FUNGICIDE
11/02/2021
100-922
Actigard 50WG Plant Activator
Page 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)
2.2.1 User Safety Requirements
2.2.2 Engineering Controls
2.2.3 User Safety Recommendations
2.3 Environmental Hazards
2.4 Physical or Chemical 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
4.1.1 Ground Application
4.1.2 Aerial Application
4.2 Application Equipment
4.2.1 Nozzles
4.2.2 Pumps
4.3 Application Volume and Spray Coverage
4.4 Mixing Directions
4.4.1 Actigard 50WG Plant Activator Alone
4.4.2 Tank-Mix Precautions
4.4.3 Tank-Mix Compatibility
4.4.4 Actigard 50WG Plant Activator In Tank Mixtures
4.4.5 Spray Additives
4.5 Application through Irrigation Systems (Chemigation)
4.5.1 Chemigation Restrictions
4.5.2 Operating Instructions For Chemigation
4.5.3 Specific Instructions For Public Water Systems
4.5.4 Application Directions For Irrigation Systems
4.5.5 Mechanical Drip System for Transplant Production
5.0 ROTATIONAL CROP RESTRICTIONS
6.0 RESTRICTIONS AND PRECAUTIONS
6.1 Use Restrictions
6.2 Use Precautions
6.3 Mandatory Spray Drift Management
6.3.1 Aerial Applications
6.3.2 Ground Boom Applications
6.3.3 Airblast Applications
Actigard 50WG Plant Activator
Page 3
6.4 Spray Drift Advisories
6.4.1 Importance of Droplet Size
6.4.2 Controlling Droplet Size Ground Boom
6.4.3 Controlling Droplet Size Aircraft
6.4.4 Boom Height Ground Boom
6.4.5 Release Height - Aircraft
6.4.6 Shielded Sprayer
6.4.7 Temperature and Humidity
6.4.8 Temperature Inversions
6.4.9 Wind
7.0 CROP USE DIRECTIONS
7.1 Brassica (Cole) Leafy Vegetables, Crop Group 5
7.2 Citrus Fruit, Crop Group 10-10
7.3 Cucurbit Vegetables, Crop Group 9
7.4 Leafy Vegetables Crop Group 4, Except Spinach
7.5 Low Growing Berry, Crop Subgroup 13-07G
7.6 Onion, Bulb, Crop Subgroup 3-07A
7.7 Pepper (Sweet and other Fruiting Vegetable), Excluding Tomato
7.8 Pome Fruit Crop Group 11-10
7.9 Spinach
7.10 Tobacco
7.11 Tomato
7.12 Tomatoes and Peppers Mechanical Drip System for Transplant Production
8.0 STORAGE AND DISPOSAL
9.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY
10.0 APPENDIX
10.1 Actigard 50WG Plant Activator Conversion Table
10.2 Amount of Actigard 50WG Plant Activator per 100 Gallons of Water for Drench
Applications
10.3 [Optional Table] Actigard 50WG Plant Activator Use Summary Table
Actigard 50WG Plant Activator
Page 4
1.0 FIRST AID
FIRST AID
If on skin  Take off contaminated clothing.
 Rinse skin immediatel y with plenty of water for 15-20 minutes.
 Call a poison control center o r doctor for treatment advice.
If in eyes  Hold eye open and rinse slowly and gently with water for 15-20
minutes.
 Remove contact lenses, if prese nt, after the first 5 minutes, then
continue rinsing eye.
 Call a poison control center o r doctor for treatment advice.
If inhaled  Move person to fresh air.
 If person is not breathing, ca ll 911 or an ambulance, then give
artificial respiration, preferably by mouth-to-mouth, if possible.
 Call a poison control center o r doctor for further treatment
advice.
If swallowed  Call a poison control center o r doctor immediately for treatment
advice.
 Have person sip a glass o f water if able to swallow.
 Do not induce vomiting unless told to do so by the poison
control center or doctor.
 Do not give anything by mouth to an unconscious person.
Have the product container or label with you when calling a poison control center or
doctor, or going for treatment.
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 Humans and Domestic Animals
CAUTION
Harmful if absorbed through skin. Causes moderate eye irritation. Avoid contact with skin,
eyes or clothing. Wash thoroughly with soap and water after handling and before eating,
drinking, chewing gum, using tobacco or using the toilet. Remove and wash contaminated
clothing before reuse.
Actigard 50WG Plant Activator
Page 5
2.2 Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
 Long-sleeved shirt and long pants
 Waterproof gloves
 Shoes plus socks
The State of California believes prolonged or frequently repeated skin contact may cause
allergic reactions in some individuals.
2.2.1 User Safety Requirements
Follow 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 Controls
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.
2.2.3 User Safety Recommendations
User Safety Recommendations
Users should:
 Remove clothing/PPE immediatel y if pesticide gets inside. Then wash
thoroughly 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.
2.3 Environmental Hazards
This pesticide is toxic to fish and aquatic invertebrates. 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 cleaning equipment or disposing of equipment washwater or
rinsate.
2.4 Physical or Chemical Hazards
Do not use, pour, spill, or store near heat or open flame.
Actigard 50WG Plant Activator
Page 6
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.
FAILURE TO FOLLOW DIRECTIONS AND PRECAUTIONS ON THIS LABEL MAY
RESULT IN CROP INJURY, POOR DISEASE CONTROL, AND/OR ILLEGAL RESIDUES.
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 12 hours.
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
 Shoes plus socks
3.0 PRODUCT INFORMATION
Actigard 50WG Plant Activator is a selective, non-pesticidal systemic compound used for the
control of several listed fungal, bacterial, and viral plant diseases. Actigard 50WG Plant
Activator is an inducer of host plant resistance. Actigard 50WG Plant Activator exhibits a
unique mode of action which mimics the natural systemic activated resistance (SAR)
response found in most plant species. Actigard 50WG Plant Activator has no direct activity
against target pathogens.
For best performance, Actigard 50WG Plant Activator needs to be applied preventively,
Actigard 50WG Plant Activator
Page 7
before disease is observed. An Actigard 50WG Plant Activator application mimics the SAR
response in plants. Maximum disease protection is normally obtained 4 days after an
Actigard 50WG Plant Activator application.
Actigard 50WG Plant Activator moves systemically within the plant; however; when making
foliar applications, uniform spray coverage is essential for best performance. Make no more
spray solution than is needed for application. Avoid spray overlap, as crop injury may occur.
Actigard 50WG Plant Activator provides protection against certain diseases in the crops listed
on this label. Actigard 50WG Plant Activator provides sufficient protection to reduce disease
levels but needs to be tank mixed with other registered products with curative activity if
disease is present at the time of application, to ensure adequate disease control as well as to
broaden the spectrum of disease control.
3.1 Integrated Pest Management (IPM)
Actigard 50WG Plant Activator should be integrated into an overall disease and pest
management strategy whenever the use of a fungicide is required. Cultural practices known
to reduce disease development should be followed. The Crop Use Directions (Section 7.0)
in this label identifies specific IPM recommendations for each crop. Consult your local
agricultural authorities for additional IPM strategies established for your area. Actigard 50WG
Plant Activator 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
ACIBENZOLAR-S-METHYL GROUP P01 FUNGICIDE
For resistance management, Actigard 50WG Plant Activator contains a Group P01 fungicide.
Any fungal populations may contain individuals naturally resistant to Actigard 50WG Plant
Activator and other Group P01 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.
To delay fungicide resistance, take one or more of the following steps:
 Rotate the use of Actigard 50W G Plant Activator or other Group P01 fungicides within
a growing season sequence with different groups that control the same pathogens.
 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.
 Adopt an integrated disease m anagement program for fungicide use that includes
scouting, uses historical information related to pesticide use, and crop rotation, and
which considers host plant resistance, impact of environmental conditions on disease
Actigard 50WG Plant Activator
Page 8
development, disease thresholds, as well as cultural, biological and other chemical
control practices.
 Where possible, make use of pre dictive disease models to effectively time fungicide
applications. Note that using predictive models alone is not sufficient to manage
resistance.
 Monitor treated fungal populati ons for resistance development.
 Contact your local extension spec ialist or certified crop advisor for any additional
pesticide resistance-management and/or IPM recommendations for specific crops and
pathogens.
 For further information or to r eport 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.
4.0 APPLICATION DIRECTIONS
4.1 Methods of Application
Apply Actigard 50WG Plant Activator at rates specified in Section 7.0. Where permitted,
applications can be made by ground, by air, and via chemigation as specified in Section 7.0.
Refer to Section 4.5 for details of application by chemigation.
4.1.1 Ground Application
 Apply in a minimum of 10 gal/A , unless specified otherwise.
 Thorough coverage is necessary to provide good disease control.
4.1.2 Aerial Application
 Use only on crops where aerial applications are indicated.
 Thorough coverage is necessary to provide good disease protection.
 Apply in a minimum of 10 gal/A unless specified otherwise.
 Avoid application under conditi ons when uniform coverage cannot be obtained or
when excessive spray drift may occur.
 The interaction of many equipm ent and weather related factors determine the potential
for spray drift.
 The applicator and the grower a re responsible for considering all these factors when
making decisions.
4.2 Application Equipment
 Spray equipment configuration needs to be arranged to provide accurate, uniform and
thorough coverage of the target crop and minimize potential for spray drift.
 To ensure accuracy, calibrate sprayer before each use.
 For information on spray equipm ent and calibration, consult spray equipment
manufacturers and/or state specifications.
 All ground/aerial/chem igation application equipment must be properly maintained and
calibrated using appropriate carriers.
Actigard 50WG Plant Activator
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4.2.1 Nozzles
 Equip sprayers with nozzles t hat provide accurate and uniform application.
 Nozzles need to be the same s ize and uniformly spaced across the boom.
 Calibrate sprayer before use.
 It is suggested that screens be used to protect the pump and t o prevent nozzles from
clogging.
 Screens placed on sucti on side of pump need to be 16-mesh or coarser.
 DO NOT place a screen in the recirculation line.
 Use 50-mesh or coarser scr eens between the pump and boom, and where required, at
nozzles.
 Check nozzle manufacturers specifications.
4.2.2 Pumps
 Use a pump with capacity to:
o Maintain adequate psi at nozzles
o Provide sufficient agitation in the tank to keep mixture in suspension this
requires recirculation of 10% of tank volume per minute.
 Use a jet agitator or liqui d sparge tube for agitation.
 DO NOT air sparge.
For more information on spray equipment and calibration, consult sprayer manufacturers
and state specifications. For specific local directions and spray schedules, consult the
current state agricultural specifications.
4.3 Application Volume and Spray Coverage
 Thorough coverage is necessary to provide good disease control.
 Apply in sufficient water to ensure adequate coverage.
 Avoid application under conditi ons when uniform coverage cannot be obtained or
when excessive spray drift may occur.
 For ground applications, apply in a minimum of 10 gallons of water per acre unless
specified otherwise.
 For aerial applications, apply in a minimum of 10 gallons of water per acre unless
specified otherwise.
4.4 Mixing Directions
1. Thoroughly clean spray equipmen t before using this product.
2. Prepare no more spray mixtur e than is needed for the immediate operation.
3. Keep product container tightly closed when not in use.
4. Agitate the spray solution before and during application.
5. DO NOT let the spray mixture stand overnight in the spray tank.
6. Flush the spray equipment thor oughly following each use and apply the rinsate to a
previously treated area.
Actigard 50WG Plant Activator
Page 10
4.4.1 Actigard 50WG Plant Activator Alone
1. Add 1/2 of the required amount o f water to the spray or mixing tank.
2. With the agitator running, add the desired amount of product into the spray tank.
3. Continue agitation while adding the remainder of the water.
4. Begin application of the solu tion after Actigard 50WG Plant Activator has completely
dispersed into the mix water.
5. Maintain agitation until a ll of the mixture has been applied.
4.4.2 Tank-Mix Precautions
 It is the pesticide users res ponsibility to ensure that all products are registered for the
intended use. Read and follow the applicable restrictions, limitation and directions for
use on all product labels involved in tank mixing. User must follow the most restrictive
directions for use and precautionary statement of each product in the tank mixture.
 Tank mixes of Actigard 50WG Plan t Activator with other pesticides, fertilizers, or any
other additives not specifically labelled for use with Actigard 50WG Plant Activator may
result in tank mix incompatibility or unsatisfactory performance. In such cases, always
check tank mix compatibility by conducting a jar test according to guidance in Section
4.4.3 before actual tank mixing.
4.4.3 Tank-Mix Compatibility
 Conduct a jar test using a 1 pt t o 1 qt container with lid by adding water or other
intended carrier such a liquid fertilizer to the jar.
 Next, add the appropriate amount of pesticides(s) or tank mix partner(s) in their
relative proportions based on specified label rates. Add tank mix components
separately in the order described in the tank-mixing section, Section 4.4.4. After each
addition, shake or stir gently to thoroughly mix.
 After all ingredients have been added, put the lid on the jar, tighten and invert the jar
10 times to mix.
 After mixing, let the mixture stand 15 30 minutes and then examine for signs of
incompatibility such as obvious separation, large flakes, precipitates, gels or heavy oily
film on the jar.
 If the mixture remains mixed or can be remixed readily, it is physically compatible and
can be used.
 If the mixture is incompatible , repeat the test using a compatibility agent at the
specified rate. Or, if applicable, slurry dry formulations in water before adding to the
jar. If incompatibility is still observed after following these procedures, do not use the
mixture.
 After compatibility testing is c omplete, dispose of any pesticide wastes in accordance
with the storage and disposal section, (Section 8.0) of this label.
4.4.4 Actigard 50WG Plant Activator In Tank Mixtures
1. Fill the tank with 1/2 volume of the mixing diluent.
2. Start the agitator running bef ore adding any tank-mix partners.
Actigard 50WG Plant Activator
Page 11
3. Add all products in water-sol uble packaging to the tank before any other tank-mix
partner. Allow the water-soluble packaging to completely dissolve and the product(s)
to completely disperse before adding any other tank-mix partner to the tank.
4. In general, add tank-mix partners in this order:
a) products packaged in water-soluble packaging
b) wettable powders
c) wettable granules (dry flowables)
d) liquid flowables
e) liquids
f) emulsifiable concentrates
5. Make sure all other products a re fully dispersed in the mixing diluent before adding the
specified rate of this product to the tank.
6. Add the remainder of t he mixing diluent volume.
7. It is specified that mixing and spray equipment have continuous agitation for best
results.
8. Follow the precaut ions and limitations of the most restricted product in the tank
mixture.
4.4.5 Spray Additives
 When an adjuvant is to be used with this product, the use of a n adjuvant that meets
the standards of the standards of the Council of Producers and Distributors of
Agrotechnology (CPDA) adjuvant certification program is advised.
4.5 Application through Irrigation Systems (Chemigation)
4.5.1 Chemigation Restrictions
 Apply this product only through center pivot, solid set, hand move, moving wheel,
micro-sprinkler, or drip irrigation systems.
 DO NOT apply this product through any other type of irrigation system.
 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 are in place.
 Crop injury, lack of effectiv eness, or illegal pesticide residues in the crop can result
from non-uniform distribution of treated water.
4.5.2 Operating Instructions For Chemigation
1. The system must contain a f unctional 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 pipel ine must contain a functional, automatic, quick-closing
check-valve to prevent the flow of fluid back toward the injection pump.
3. The pesticide injection pipeli ne 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.
Actigard 50WG Plant Activator
Page 12
4. The system must contain func tional interlocking controls to automatically shut off the
pesticide injection pump when the water pump motor stops.
5. The irrigation line or water pump must include 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 pum p, 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 fa vors drift beyond the area intended for treatment.
4.5.3 Specific Instructions For Public Water Systems
1. Public water system means a system for the 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 need to 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 pipel ine must contain a functional, automatic, quick-closing check
valve to prevent the flow of fluid back toward the injection pump.
4. The pesticide injection pipel ine 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 func tional interlocking 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 pum p, 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 fa vors drift beyond the area intended for treatment.
Actigard 50WG Plant Activator
Page 13
4.5.4 Application Directions For Irrigation Systems
 If you have questions about calibration, you need to contact S tate Extension Service
specialists, equipment manufacturers, or other experts.
 Applications via Drip Irrigat ion: The amount of product needed is based on the rate
per acre. The rate per 1,000 linear feet will vary depending on the row spacing but
the rate per acre will be the same. The following table is a general guide for the
amount of product per 1,000 linear feet.
oz Actigard 50WG Plant Activator/1,000 row feet based on rate/Acre
Rate (oz Actigard 50WG Plant Activator)/Acre
centers linear feet/A 0.33 0.5 0.75 1 2
24" 21780 0.015 0.023 0.034 0.046 0.092
36" 14520 0.023 0.034 0.052 0.069 0.138
48" 10890 0.03 0.046 0.069 0.092 0.183
 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 if the need arise.
 Actigard 50WG Plant Activat or must be applied on the schedule specified in the
specific crop use directions, not according to the irrigation schedule.
4.5.5 Mechanical Drip System for Transplant Production
Application of Actigard 50WG Plant Activator into seeded transplant trays:
 Actigard 50WG Plant Activator can be applied into individual transplant tray cells
containing seed using a mechanical drip system (e.g., the PHYTO-DRIP® application
system) with the appropriate dilution of Actigard 50WG Plant Activator in water or
water mixed with other products registered to be applied using this method.
 Actigard 50WG Plant Activator may be applied to the transplant tray cells before or
after the seeds are covered with soil media but before the trays are watered.
 The mechanical drip system must be calibrated so that each cell in the tray receives
the prescribed dose rate of Actigard 50WG Plant Activator. For calibration of the drip
system, consult with Syngenta or the equipment manufacturer.
 The Actigard 50WG Plant Activat or application solution needs to be applied at an
application volume of not less than 0.1 mL per cell and not greater than 1 mL per cell.
 The application pressure needs to be low enough to prevent the application solution
from splashing out of the cell to which it is applied during the application process.
Actigard 50WG Plant Activator
Page 14
5.0 ROTATIONAL CROP RESTRICTIONS
Crop Actigard 50WG Plant Activator Rotation
Interval
Brassica (cole) crops
Cucurbits
Fruiting Vegetables
Eggplant
Groundcherry
Pepino
Peppers (all types)
Tomatoes
Lettuce (all types)
Onion, dry bulb group
Shallot
Spinach
Tobacco
0 days
All other crops for food or feed 30 days
6.0 RESTRICTIONS AND PRECAUTIONS
6.1 Use Restrictions
 DO NOT apply through any ultra-low volume (ULV) spray system.
 DO NOT apply directly to humans or animals.
6.2 Use Precautions
 Avoid spray overlap, as crop injury may occur.
 To avoid spray drift, do not apply when conditions favor drift beyond the target area.
6.3 Mandatory Spray Drift Management
 AVOIDING SPRAY DRIFT AT THE APPLI CATION SITE IS THE RESPONSIBILITY OF THE
APPLICATOR.
 DO NOT spray when conditions favor drift beyond area intended for application.
 The interaction of many equipm ent and weather related factors determine the potential for spray
drift.
 Conditions which may contribute to drift include thermal inversion, wind speed and direction,
sprayer nozzle/pressure combinations, spray droplet size, etc.
 Contact your State extension a gent for spray drift prevention guidelines in your area.
NOTE: When states have more stringent regulations, they must be observed.
6.3.1 Aerial Applications
 For aerial applications, the release height must be no higher than 10 feet from the top of the crop
canopy, unless a greater application height is required for pilot safety.
Actigard 50WG Plant Activator
Page 15
 The boom length must not exceed 65% of the wingspan for airplanes or 75% of the rotor blade
diameter for helicopters.
 Applicators must use ½ swath d isplacement upwind at the downwind edge of the field.
 Nozzles must be oriented so the spray is directed toward the back of the aircraft.
 DO NOT apply when wind speeds exceed 10 miles per hour at the application site.
 DO NOT apply during temperature inversions.
6.3.2 Ground Boom Applications
 Apply with the nozzle height r ecommended by the manufacturer, but no more than 4 feet above
the ground or crop canopy.
 For all applications, applicators are required to use a medium or coarser spray droplet size
(ASABE S572.1).
 DO NOT apply when wind speeds exceed 10 miles per hour at the application site.
 DO NOT apply during temperature inversions.
6.3.3 Airblast Applications
 Direct spray into the canopy.
 Turn off outward pointing nozzl e at row ends and when spraying outer rows.
 Applicators are required to use a medium or coarser droplet size (ASABE S572.1) for all
applications.
 DO NOT apply when wind speeds exceed 10 miles per hour at the application site.
 DO NOT apply during temperature inversions.
6.4 Spray Drift Advisories
6.4.1 Importance of Droplet Size
 An effective way to reduce sp ray drift is to apply large droplets. Use the largest droplets
that provide target pest control.
 While applying larger droplet s will reduce spray drift, the potential for drift will be greater if
applications are made improperly or under unfavorable environmental conditions.
6.4.2 Controlling Droplet Size Ground Boom
 Volume - Increasing the spray volume so that larger droplets are produced will reduce
spray drift. Use the highest practical spray volume for the application. If a greater spray
volume is needed, consider using a nozzle with a higher flow rate.
 Pressure - Use the lowest spray pressure recommended for the nozzle to produce the
target spray volume and droplet size.
 Spray Nozzle - Use a spray nozzle that is designed for the intended application.
Consider using nozzles designed to reduce drift.
6.4.3 Controlling Droplet Size Aircraft
 Adjust Nozzles - Follow nozzle manufacturers recommendations for setting up nozzles.
Generally, to reduce fine droplets, nozzles should be oriented parallel with the airflow in
flight.
Actigard 50WG Plant Activator
Page 16
6.4.4 Boom Height Ground Boom
Use the lowest boom height that is compatible with the spray nozzles. Generally, to reduce
fine droplets, nozzles should be oriented parallel with the airflow in flight.
6.4.5 Release Height - Aircraft
Higher release heights increase the potential for spray drift. When applying aerially to crops,
do not spray at a height greater than 10ft above the crop canopy, unless a greater application
height is necessary for pilot safety.
6.4.6 Shielded Sprayer
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.
6.4.7 Temperature and Humidity
When making applications in hot and dry conditions, use larger droplets to reduce effects of
evaporation.
6.4.8 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.
6.4.9 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.
BOOM-LESS GROUND APPLICATIONS
Setting nozzles at the lowest effective height will help to reduce the potential for spray drift.
HANDHELD TECHNOLOGY APPLICATIONS
Take precautions to minimize spray drift.
Actigard 50WG Plant Activator
Page 17
7.0 CROP USE DIRECTIONS
7.1 Brassica (Cole) Leafy Vegetables, Crop Group 5
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 broccoli
Collards
Kale
Kohlrabi
Mizuna
Mustard Greens
Mustard Spinach
Rape Greens
Target Pest
Rate
(oz/A) Application Timing Use Directions
Downy Mildew
(Peronospora parasitica)
Suppression Only:
Black Rot
(Xanthomonas campestris)
0.5 1 Begin applications 7-10
days after thinning.
Apply preventatively.
Apply by ground, drip irrigation,
overhead irrigation, or by air.
If downy mildew is present in
the production area, use
another registered downy
mildew fungicide at the same
timing as the Actigard 50WG
Plant Activator application (can
tank mix if applying Actigard
50WG Plant Activator as a foliar
spray). Once activated, the
supplemental applications of
Actigard 50WG Plant Activator
may be applied alone.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 1 oz/A/application
a. DO NOT exceed 0.031 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 4 applications at 1 oz rate or 8 applications at 0.5 oz rate.
5) Maximum Annual Rate: 4 oz/A/year
a. DO NOT exceed 0.125 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) Pre-Harvest Interval (PHI): 7 days
Actigard 50WG Plant Activator
Page 18
7.2 Citrus Fruit, Crop Group 10-10
Crops (Including all cultivars, varieties, and/or hybrids of these)
Australian desert lime
Australian finger-lime
Australian round lime
Brown River finger lime
Calamondin
Citron
Citrus hybrids
Grapefruit
Japanese summer grapefruit
Kumquat
Lemon
Lime
Mediterranean mandarin
Mount White lime
New Guinea wild lime
Orange, sour
Orange, sweet
Pummelo
Russell River lime
Satsuma mandarin
Sweet lime
Tachibana orange
Tahiti lime
Tangelo
Tangerine (mandarin)
Tangor
Trifoliate orange
Uniq fruit
Target Pest
Rate
(oz) Application Timing Use Directions
Suppression Only:
Citrus Canker
(Xanthomonas
campestris pv. citri)
Per single tree
0.0012 0.035
oz
Per 100 trees
0.12 1.5 oz
(see Table
10.2)
Per Acre
0.5 - 3.2 oz/A
Apply preventively on a
30-day retreatment
interval schedule.
Apply by drench or chemigation.
Drench Application: For best activity,
apply as a drench in the desired
amount of the mix solution (8-16 fl oz
of solution) around the base of the
tree within the first 4-6 inches
around the tree.
NOTE: Determine rate based on
tree age using the table below, then
use Table 10.2 to determine the
amount of Actigard 50WG Plant
Activator for the volume of solution
desired.
To determine the total ounces of
Actigard 50WG Plant Activator/A,
multiply the number of trees per acre
by the ounces of Actigard 50WG Plant
Activator per tree.
Chemigation Application: Actigard
50WG Plant Activator may be applied
via drip irrigation or via micro-sprinkler
irrigation at 0.5 3.2 oz/A.
Rate by Tree Age per 100 Trees at 4 or 5 Applications per Year
Number of applications
Tree Age and oz/100 trees
< 1 year 1-2 years 2-3 years >3 years
4 or fewer applications per year 0.125
0.25 oz 0.25 0.5 oz 0.5 0.75 oz 0.75 1.5 oz
5 or more applications per year 0.125 oz 0.25 oz 0.5 oz 0.75- 1.0 oz
Resistance Management:
 Refer to Section 3.2.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 3.2 oz/A/application
Actigard 50WG Plant Activator
Page 19
a. DO NOT exceed 0.1 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 30 days
4) Maximum Annual Applications: 4 applications at 3.2 oz rate or 12 applications at 0.5 oz rate.
5) Maximum Annual Rate: 12.8 oz/A/year
a. DO NOT exceed 0.4 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) Pre-Harvest Interval (PHI): 0 days
Actigard 50WG Plant Activator
Page 20
7.3 Cucurbit Vegetables, Crop Group 9
Crops (Including all cultivars, varieties, and/or hybrids of these)
Chayote (fruit)
Chinese waxgourd (Chinese preserving melon)
Citron melon
Cucumber
Gherkin
Gourd, edible
Chinese okra
Cucuzza
Hechima
Hyotan
Momordica spp.
Balsam apple
Balsam pear
Bittermelon
Chinese cucumber
Muskmelon
Cantaloupe
Pumpkin
Squash, summer (field and greenhouse)
Crookneck squash
Scallop squash
Straightneck squash
Vegetable marrow
Zucchini
Squash, winter
Acorn squash
Butternut squash
Calabaza
Hubbard squash
Spaghetti squash
Watermelon
Target Pest
Rate
(oz/A) Application Timing Use Directions
Suppression Only:
Angular Leaf Spot
(Pseudomonas
syringae pv.
lachrymans)
Bacterial Fruit Blotch
(Acidovorax avena
citrulli)
Bacterial Leaf Spot
(Xanthomonas
campestris pv.
cucurbitae)
Downy Mildew
(Pseudoperonos
pora cubensis)
Powdery Mildew
(Sphaerotheca
fuliginea) (Erysiphe
cichoracearum)
Scab
(Cladosporium
cucumerimum)
0.5 - 2 Apply preventively prior to
disease development.
Apply by ground, drip irrigation, or air.
Actigard 50WG Plant Activator can be
tank mixed with other fungicides and
bactericides such as copper products
if disease is present.
If disease is present in the production
area, another registered product
labeled for that disease needs to be
applied at the same timing as the
Actigard 50WG Plant Activator
application (can tank mix if applying
Actigard 50WG Plant Activator as a
foliar spray). Banded applications can
be made early when plants are small
(7" proportional band) as long as
coverage is adequate.
Refer to Section 4.4.5
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, or herbicide injury, etc.
Actigard 50WG Plant Activator
Page 21
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 2 oz/A/application
a. DO NOT exceed 0.063 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 4 applications at 2.0 oz rate or 8 applications at 0.5 oz rate.
5) Maximum Annual Rate: 8 oz/A/year
a. DO NOT exceed 0.25 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) Pre-Harvest Interval (PHI): 0 days
7.4 Leafy Vegetables Crop Group 4, Except Spinach
Crops (Including all cultivars, varieties, and/or hybrids of these)
Amaranth (Chinese spinach)
Arugula (roquette)
Cardoon
Celery
Celery, Chinese
Celtuce
Chervil
Chrysanthemum, edible-leaved
Chrysanthemum, garland
Corn salad
Cress, garden
Cress, upland
Dandelion
Dock (sorrel)
Endive (escarole)
Fennel, Florence
Lettuce, head
Lettuce, leaf
Orach
Parsley
Purslane, garden
Purslane, winter
Radicchio (red chicory)
Rhubarb
Swiss chard
Target Pest
Rate
(oz/A) Application Timing Use Directions
Downy Mildew
(Bremia lactucae)
0.75 1 Apply preventively on a 7-
to 10-day schedule.
Begin applications after
thinning.
Apply by ground, drip irrigation,
overhead irrigation, or air.
If downy mildew is present in the
production area, the first application
needs to be made in tank mixture with
another registered downy mildew
fungicide.
Once activated, the supplemental
applications of Actigard 50WG Plant
Activator may be applied alone.
Banded applications can be made
early when plants are small (7-inch
proportional band) as long as
coverage is adequate.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Applying Actigard 50WG Plant Activator when extended cold or cold and cloudy conditions are expected
may cause crop injury to occur.
Actigard 50WG Plant Activator
Page 22
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 1 oz/A/application
a. DO NOT exceed 0.031 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 9 applications at 1.0 oz rate or 12 applications at 0.75 oz rate.
5) Maximum Annual Rate: 9.5 oz/A/year
a. DO NOT exceed 0.3 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) DO NOT make more than 4 consecutive applications per crop as it may result in crop injury.
7) DO NOT use more than one application of Actigard 50WG Plant Activator on head lettuce intended for
bag purposes (delayed harvest) due to potential fringe burn.
8) DO NOT apply prior to thinning or within 5 days of transplanting.
9) Pre-Harvest Interval (PHI): 7 days
Actigard 50WG Plant Activator
Page 23
7.5 Low Growing Berry, Crop Subgroup 13-07G
Crops (Including all cultivars, varieties, and/or hybrids of these)
Bearberry
Bilberry
Blueberry, Lowbush
Cloudberry
Cranberry
Lingonberry
Muntries
Partridgeberry
Strawberry
Target Pest
Rate
(oz/A) Application Timing Use Directions
Suppression Only:
Angular Leaf Spot
(Xanthomonas
fragariae)
0.5 - 0.75 Begin applications when
disease appears, and
continue on a 7- to 14-day
interval.
Apply by ground or air.
Scout fields regularly for angular leaf
spot after plant establishment.
Banded applications can be made
early when plants are small (7"
proportional band) as long as
coverage is adequate.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Avoid spray overlap as injury may occur.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 0.75 oz/A/application
a. DO NOT exceed 0.023 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 8 applications at 0.75 oz rate or 12 applications at 0.5 oz rate.
5) Maximum Annual Rate: 6 oz/A/year
a. DO NOT exceed 0.188 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) DO NOT apply within 5 days of transplanting.
7) Pre-Harvest Interval (PHI): 0 days
Actigard 50WG Plant Activator
Page 24
7.6 Onion, Bulb, Crop Subgroup 3-07A
Crops (Including all cultivars, varieties, and/or hybrids of these)
Bulb daylily
Bulb fritillaria
Bulb garlic
Bulb lily
Bulb shallot
Chinese bulb onion
Great-headed bulb garlic
Pearl onion
Potato bulb onion
Serpent bulb garlic
Target Pest
Rate
(oz/A) Application Timing Use Directions
Suppression Only:
Downy Mildew
(Peronospora
destructor)
Iris Yellow Spot
(Iris yellow spot virus)
Leaf Blight
(Xanthomonas
axonopodis pv. allii)
0.75 - 1 Apply preventively on a 7- to
10-day schedule.
Begin applications after
thinning or after the 3-4 leaf
stage.
For iris yellow spot virus,
begin at 4 to 6 weeks pre-
bulb initiation and continue
on a 7- to 10-day interval.
For Xanthomonas leaf
blight, begin applications 2-
4 weeks pre-bulb initiation
and continue on a 7- to 10-
day interval.
Apply by ground, drip irrigation,
overhead irrigation, or air.
Banded applications can be made
early when plants are small (7"
proportional band) as long as
coverage is adequate.
A minimum of 5 gal/A needs to be
used for aerial applications.
For yellow spot virus, use Actigard
50WG Plant Activator in conjunction
with a thrips control program.
For Xanthomonas leaf blight, after
the final Actigard 50WG Plant
Activator application, use a specified
copper-based bactericide program to
finish the season.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Avoid spray overlap as injury may occur.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 1 oz/A/application
a. DO NOT exceed 0.031 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 4 applications at 1.0 oz rate or 5 applications at 0.75 oz rate.
5) Maximum Annual Rate: 4 oz/A/year
a. DO NOT exceed 0.125 lb ai/A/year of acibenzolar-S-methyl-containing products
6) DO NOT apply prior to thinning or within 5 days of transplanting.
7) Pre-Harvest Interval (PHI): 7 days
Actigard 50WG Plant Activator
Page 25
7.7 Pepper (Sweet and other Fruiting Vegetable), Excluding Tomato
Crops (Including all cultivars, varieties, and/or hybrids of these)
Eggplant
Groundcherry
Pepino
Pepper
Banana
Bell pepper
Cubanelle
Lamuyo
Pimento
Pepper (Non-bell/Chili/Hot)
Target Pest
Rate
(oz/A) Application Timing Use Directions
Bacterial Spot
(Xanthomonas spp.)
0.33 0.75
Hot Peppers Only:
0.75 oz per 100
gallons of water
(minimum of 0.33 oz/A
in early season and
maximum of 0.75 oz/A
by end of season).
Apply 0.75 oz/A of Actigard
50WG Plant Activator within
one week of transplanting.
Apply 0.5 oz/A seven (7) days
after the first spray.
Apply 0.33 oz/A every 7 days
until plants begin to bloom.
Apply by ground, drip
irrigation, overhead
irrigation, or air.
Banded applications can
be made early when plants
are small (7" proportional
band) as long as coverage
is adequate.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Applying Actigard 50WG Plant Activator once plants begin to bloom or when plants are stressed may cause
crop injury.
 Under certain conditions, this product, when used on fruiting vegetables or hot peppers, may lead to
reductions in yield. Syngenta advises that the user and/or grower test this product in order to determine its
suitability for its intended use in fruiting vegetables or hot peppers. Syngenta makes this product available
to the user, and/or grower solely to the extent that the benefit and utility, in the sole opinion of the user
and/or grower, outweigh the extent of potential reductions in yield of fruiting vegetables or hot peppers
following use of Actigard 50WG Plant Activator. The decision to use or not use Actigard 50WG Plant
Activator in fruiting vegetables or hot peppers must be made by each individual user and/or grower on the
basis of possible reductions in yield, the severity of disease incidence, the cost of alternate disease control
options, if any, and other factors.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 0.75 oz/A/application
a. DO NOT exceed 0.023 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 8
5) Maximum Annual Rate: 6 oz/A/year
a. DO NOT exceed 0.1875 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) Pre-Harvest Interval (PHI): 14 days
Actigard 50WG Plant Activator
Page 26
7.8 Pome Fruit Crop Group 11-10
Crops (Including all cultivars, varieties, and/or hybrids of these)
Apple
Azarole
Crabapple
Loquat
Mayhaw
Medlar
Pear
Pear, Asian
Quince
Quince, Chinese
Quince, Japanese
Tejocote
Target Pest
Rate
(oz/A) Application Timing Use Directions
Suppression Only:
Fire Blight (Erwinia
amylovora)
Foliar Application:
0.5 3.2
Apply 2-3 applications
between 20% bloom
and petal fall
depending on the
environmental
conditions.
Additional applications
may be made during
subsequent infection
periods.
Suppression:
Apply Actigard 50WG Plant
Activator in a tank mix or rotation
with antibiotic products.
Apply 0.5 3.2 oz/A in a tank mix
with a fire blight treatment
(generally an antibiotic) that is
standard in your area.
Paint Application
1 oz/1 quart of 1%
penetrant
Paint application:
Mix 1 oz Actigard in 1 quart of 1%
Pentrabark or similar penetrant. For
canker cut-outs or grafts, apply to
the branch area immediately below
canker after cutting to an area
extending 1 - 1 ½ feet. One quart
will treat approximately 500 cuts.
Applications may also be applied to
the central leader in young trees.
Paint applied to the roots, buds, or
other sensitive tissue may result in
damage.
Soil Application:
0.0012 0.035/tree
Begin at green tip. Drench Application:
Apply as a drench (8-16 fl oz of
solution) around the base of the tree
within the first 4-6 inches around
the tree.
Lower rates are advised for younger
trees while higher rates are advised
for trees over 4 years old. Refer to
Table 10.2 to determine amount of
Actigard 50WG Plant Activator in
solution needed.
Chemigation Application:
Actigard 50WG Plant Activator
Page 27
Actigard 50WG Plant Activator may
be applied via drip irrigation or via
micro- sprinkler irrigation.
Resistance Management:
 Refer to Section 3.2.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 3.2 oz/A/application
a. DO NOT exceed 0.1 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 4 applications at 3.2 oz rate or 25 at 0.5 oz rate.
5) Maximum Annual Rate: 12.8 oz/A/year
a. DO NOT exceed 0.4 lb ai/A/year of acibenzolar-S-methyl-containing products
6) Pre-Harvest Interval (PHI)
a. Soil Applications: 0 days
b. Paint Applications: 60 days
c. Foliar Applications: 60 days
Actigard 50WG Plant Activator
Page 28
7.9 Spinach
Crops (Including all cultivars, varieties, and/or hybrids of these)
Spinach
Target Pest
Rate
(oz/A) Application Timing Use Directions
Downy Mildew
(Peronospora
effusa)
White Rust
(Albugo
occidentalis)
0.5 0.75 Apply preventively on a 7- to
10-day schedule.
Begin applications at first to
second true leaf or after
thinning.
Apply by ground, drip irrigation,
overhead irrigation, or air.
If disease is present in the production
area, use another registered fungicide
at the same timing as the Actigard
50WG Plant Activator application (can
tank mix if applying Actigard 50WG
Plant Activator as a foliar spray).
Banded applications can be made
early when plants are small
(proportional band) as long as
coverage is adequate.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, or when extended cold or cold and cloudy conditions are
expected.
 Applying Actigard 50WG Plant Activator to young seedlings may cause crop injury to occur.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 0.75 oz/A/application
a. DO NOT exceed 0.023 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 12 applications at 0.75 oz rate or 18 applications at 0.5 oz rate.
5) Maximum Annual Rate: 9.5 oz/A/year
a. DO NOT exceed 0.3 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) DO NOT make more than 3 consecutive applications per crop as it may result in crop injury.
7) Pre-Harvest Interval (PHI): 7 days
Actigard 50WG Plant Activator
Page 29
7.10 Tobacco
Crops (Including all cultivars, varieties, and/or hybrids of these)
Burley and Binder
Flue-Cured and Dark
Target Pest
Rate
(oz/A) Application Timing Use Directions
Blue Mold
(Peronospora
tabacina)
0.5 Apply on a preventive
schedule when blue mold
threatens.
Burley and Binder:
Make up to 3 applications on
a 10-day schedule.
Flue-Cured and Dark:
Make up to 3 applications on
a 10-day schedule.
Apply by ground or air.
Applications of Actigard 50WG Plant
Activator may result in leaf yellowing.
This cosmetic yellowing normally
disappears after the final application.
Burley and Binder:
Begin applications when plants are an
average of 18 inches tall. Another
registered blue mold product needs to
be used prior to 18 inches for early
season control and after the final
application if conditions are conducive
for disease.
Flue-Cured and Dark:
Begin applications when plants are an
average of 12 inches tall. Another
registered blue mold product needs to
be used prior to 12 inches for early
season control and after the final
application if conditions are conducive
for disease.
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Avoid spray overlap because injury may result.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 0.5 oz/A/application
a. DO NOT exceed 0.016 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 10 days
4) Maximum Annual Applications: 3
5) Maximum Annual Rate: 1.5 oz/A/year
a. DO NOT exceed 0.0468 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) DO NOT apply Actigard 50WG Plant Activator to tobacco in plant beds or in greenhouses/plant houses.
7) DO NOT apply Actigard 50WG Plant Activator with foliar fertilizers and crop oils.
8) Pre-Harvest Interval (PHI): 21 days
Actigard 50WG Plant Activator
Page 30
7.11 Tomato
Crops (Including all cultivars, varieties, and/or hybrids of these)
Tomato
Target Pest
Rate
(oz/A) Application Timing Use Directions
Bacterial Spot
(Xanthomonas spp.)
Bacterial Speck
(Pseudomonas
syringae pv.
tomato)
0.33 0.75 Begin applications within
one week of transplanting or
emergence.
Apply by ground or air.
0.75 oz per 100 gallons of water
(minimum of 0.33 oz/A in early
season and maximum of 0.75 oz/A by
end of season). See table below in
For Ground Applications section.
If disease is present in the production
area, another registered product for
that disease needs to be applied at
the same timing as the Actigard
50WG Plant Activator application (can
tank mix if applying Actigard 50WG
Plant Activator as a foliar spray).
Banded applications can be made
early when plants are small (7"
proportional band) as long as
coverage is adequate.
For Ground Applications: Begin season with low water volumes. As plant canopy increases, the Actigard
50WG Plant Activator rate needs to increase to ensure activity. Use the higher rate over time, even if water
volume does not increase. If gallonage at any particular application is higher than in this example, increase
Actigard 50WG Plant Activator accordingly, i.e., keep the concentration the same but do not apply an amount
of water per application delivering more than 0.75 oz product/A. The table below provides guidance on
increasing the rate through the season (a dilute carrier volume of 100 gal/A is assumed for fully grown tomato
plants).
Amount of Actigard 50WG Plant
Activator (oz/A)
Gal/A Weeks Following Transplanting
0.33 30-50 0-2
0.50 60-70 3-4
0.75 70-100 5-8
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Actigard 50WG Plant Activator needs to be applied to healthy, actively growing plants.
 Actigard 50WG Plant Activator must not be applied to plants that are stressed due to drought, excessive
moisture, cold weather, or herbicide injury, etc.
 Under certain conditions, this product, when used on tomatoes, may lead to reductions in yield. Syngenta
advises that the user and/or grower test this product in order to determine its suitability for its intended use
in tomatoes. Syngenta makes this product available to the user and/or grower solely to the extent that the
benefit and utility, in the sole opinion of the user and/or grower, outweigh the extent of potential reductions
in yield of tomatoes following use of Actigard 50WG Plant Activator. The decision to use or not use
Actigard 50WG Plant Activator in tomatoes must be made by each individual user and/or grower on the
basis of possible reductions in yield, the severity of disease incidence, the cost of alternate disease control
options, if any, and other factors.
Actigard 50WG Plant Activator
Page 31
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 0.75 oz/A/application
a. DO NOT exceed 0.023 lb ai/A/application of acibenzolar-S-methyl-containing products.
3) Minimum Application Interval: 7 days
4) Maximum Annual Applications: 8 applications at 0.75 oz rate or 18 applications at 0.33 oz rate.
5) Maximum Annual Rate: 6 oz/A/year
a. DO NOT exceed 0.1875 lb ai/A/year of acibenzolar-S-methyl-containing products.
6) Pre-Harvest Interval (PHI): 14 days
Actigard 50WG Plant Activator
Page 32
7.12 Tomatoes and Peppers Mechanical Drip System for Transplant
Production
Crops (Including all cultivars, varieties, and/or hybrids of these)
Peppers
Tomatoes
Target Pest
Rate
(Micrograms/Cell) Application Timing Use Directions
Bacterial Spot
(Xanthomonas
spp.)
Bacterial Speck
(Pseudomonas
syringae pv.
tomato)
12.5 50 Apply at the time of sowing
after the seed is placed in
each cell. It may be applied
before or after it is covered
with soil media but must be
applied before any water is
applied for germination.
Apply using a mechanical drip
system (e.g., the PHYTO-DRIP
application system) specifically
designed to apply a droplet of the
correct Actigard 50WG Plant
Activator concentration directly to
each cell in a tray.
The precise rate is determined
based on crop, variety, disease
pressure, and crop safety.
Transplant trays must not be
watered with an amount that
results in water running out of the
bottom of the tray.
Use the table below to determine
the amount of Actigard 50WG
Plant Activator to put into 25, 50,
75, or 100 L of water.
L of water in tank mL of solution per
cell
Active Ingredient Rate
in Micrograms per
Cell
Oz Actigard 50WG Plant
Activator to add
25 0.3 12.5 0.073
50 0.3 12.5 0.147
75 0.3 12.5 0.220
100 0.3 12.5 0.294
25 0.3 50 0.294
50 0.3 50 0.587
75 0.3 50 0.881
100 0.3 50 1.175
Resistance Management:
 Refer to Section 3.2.
Precautions:
 Apply at specified rates that are deemed efficacious and safe on pepper and tomatoes. It is highly advised
to use seed that is suited for transplant production. When treating new varieties, confirm safety by treating a
few trays and evaluating growth and development of the transplants. Good seed quality is important.
Actigard 50WG Plant Activator
Page 33
 Growth medium used for germinating seed, fertilizer or nutrient added, water source and water properties,
transplant material structures, prevailing conditions of temperature and humidity in transplant seedling
production may impact the performance of Actigard 50WG. Prior to using Actigard 50WG Plant Activator
via a mechanical drip system make sure that these conditions and procedures are compatible.
 Local soil, greenhouse and environmental conditions can affect the degree and longevity of the effect of
Actigard 50WG Plant Activator.
 [Optional Language: Syngenta advises if a mechanical drip is used that no further Actigard 50WG Plant
Activator applications be made until the crop is in the field.]
 [Optional Language: After application of Actigard 50WG Plant Activator via a mechanical drip system at
the time of sowing do not make another application of Actigard 50WG Plant Activator or acibenzolar-S-
methyl-containing product until the plants have been transplanted to the field.]
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 50 Micrograms/Cell/Application
Actigard 50WG Plant Activator
Page 34
8.0 STORAGE AND DISPOSAL
STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage, or disposal.
Pesticide Storage
Store in a cool, dry place.
Pesticide Disposal
Pesticide wastes may be toxic. Improper disposal of unused pesticide, spray mixture, or
rinse water is a violation of Federal Law. If these wastes cannot be used according to label
instruction, 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 [Bags]
Non-refillable container. Do not reuse or refill this container. Completely empty bag into
application equipment. Then offer for recycling if available or dispose of empty bag in a
sanitary landfill, or by incineration, or by other procedures approved by state and local
authorities.
Container Handling [Bottles]
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 or 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, by incineration, or by
other procedures approved by state and local authorities.
For minor spills, leaks, etc., follow all precautions indicated on this label and clean up
immediately. Take special care to avoid contamination of equipment and facilities during
cleanup procedures and disposal of wastes.
CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER.
Actigard 50WG Plant Activator
Page 35
9.0 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 consistent with 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 the
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.
Actigard 50WG Plant Activator
Page 36
10.0 APPENDIX
10.1 Actigard 50WG Plant Activator Conversion Table
Conversion Table For Actigard 50WG Plant Activator
Ounces lb ai/Acre
0.073 0.002
0.147 0.005
0.22 0.007
0.294 0.009
0.33 0.010
0.5 0.016
0.587 0.018
0.75 0.023
0.881 0.028
1.0 0.031
1.5 0.0468
2.0 0.063
3.0 0.094
3.2 0.100
4.0 0.125
5.0 0.156
6.0 0.188
7.0 0.219
8.0 0.25
9.5 0.30
12.8 0.40
16.0 0.50
Actigard 50WG Plant Activator
Page 37
10.2 Amount of Actigard 50WG Plant Activator per 100 Gallons of
Water for Drench Applications
Rate (oz Actigard 50WG Plant Activator) oz Actigard 50WG Plant Activator in 100 gallons of
Water
Per Tree
Per 100 Trees
For 8 oz solution
per tree
For 16 oz solution
per tree
0.00125 0.125 2 1
0.0025 0.25 4 2
0.0038 0.38 6 3
0.005 0.5 8 4
0.0075 0.75 12 6
0.015 1.5 24 12
0.035 3.5 56 28
10.3 [Optional Table] Actigard 50WG Plant Activator Use Summary
Table
Crop
Maximum
Rate per
Application
(lb ai/A)
Maximum Amount
Acibenzolar-S-
Methyl per year
(lb ai/A/year)
Minimum
Application
Interval
(days)
Maximum
Number of
Applications
Pre-Harvest
Interval - PHI
(days)
Brassica (Cole) Leafy
Vegetables Crop
Group 5
0.031 0.125 7 4 7
Citrus Fruit Crop
Group 10-10
Orange, Lemon, Lime
0.1 0.4 30 4 0
Cucurbit Vegetables
Crop Group 9
Cantaloupe, Squash,
Zucchini
0.063 0.25 7 4 0
Lettuce (Head and
Leaf) 0.031 0.3 7 9 7
Low Growing Berry,
Crop Subgroup 13-
07G
Cranberry, Strawberry
0.023 0.188 7 8 0
Onion, Bulb, Crop
Subgroup 3-07A 0.031 0.125 7 4 7
Actigard 50WG Plant Activator
Page 38
Pepper (Sweet and
other Fruiting
Vegetable), Excluding
Tomato
Bell Pepper, Eggplant
0.023 0.1875 7 8 7
Pome Fruit Crop
Group 11-10
Apple, pear
0.1 0.4 7 4
0 (soil)
60 (foliar)
Spinach 0.023 0.0703 7 12 7
Tobacco 0.016 0.0468 10 3 21
Tomato 0.023 0.1875 7 8 14
Actigard®, the ALLIANCE FRAME
the Syngenta Logo and the PURPOSE ICON
are Trademarks of a Syngenta Group Company
PHYTO-DRIP® is a registered trademark of Precision Drip B.V.
©20XX Syngenta
For non-emergency (e.g. current product information), call
Syngenta Crop Protection at 1-800-334-9481.
Manufactured for:
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, North Carolina 27419-8300
Actigard 50WG Plant Activator 922 MAS 0719 AMEND 0520-CL kdy 5/1/20
000100-00922.20200506.ACTIGARD_50WG_AMEND_0520-CL.pdf