Files
justin a97107de46
Image rebuild (skip scrape) / build (push) Failing after 1h37m12s
docker: production image + Gitea Actions for monthly refresh
Dockerfile: self-contained image with corpus + Chroma + BM25 baked
in. Drawbar's compose pulls + runs without volume mounts. Built from
sources.json (labels schema), PRODUCT_NAME=crop_chem by default,
HYBRID_SEARCH=true (always-on for production quality). RERANK_URL +
OLLAMA_URL get set at compose time.

.gitea/workflows/refresh.yml: monthly cron (1st @ 06:00 UTC) does
full scrape → reindex → image push. Scrapes Bayer (~30 min) +
EPA PPLS row-crop filtered (~7h). Skips reindex+push if no corpus
diff. Tags pushed: :latest, :<sha12>, :corpus-<YYYY.MM.DD>.

.gitea/workflows/image-only.yml: on-demand or auto on code-only
pushes to main (paths: docs_mcp/, rag/, scrape/, requirements.txt,
Dockerfile, sources.json). Reindexes from committed corpus, builds
image, pushes. ~10 min vs ~9h full refresh.

.gitignore: corpus/ now COMMITTED (4,159 labels, 265 MB of .md +
sidecars). Lets image-only.yml rebuild indexes without re-scraping.
chroma/ + bm25/ still gitignored (regenerable binary indexes).

.dockerignore: drops venv, eval results, PLAN/README/CLAUDE.md,
deploy/, .git/ — keeps the image lean. corpus + chroma + bm25
explicitly NOT in dockerignore (those go INTO the image).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-24 12:32:41 -04:00

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# ZORVEC EPICALTRIN
- EPA Reg No: **352-892**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: No Signal Word
- Active ingredients: Oxathiapiprolin (18.7%)
- Label accepted: 2023-07-24
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00892-20230724.pdf
---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, DC 20460
OFFICE OF CHEMICAL SAFETY
AND POLLUTION PREVENTION
Notification ABN or Label Acceptable v.20220527
July 24, 2023
Brenda Ferguson
Regulatory Specialist
Corteva Agriscience LLC
9330 Zionsville Road
Indianapolis, IN 46268
Subject: Notification per PRN 98-10 Add labeling for container booklet, change product
name to Zorvec Epicaltrin, add alternate brand name of DuPont Zorvec Epicaltrin,
and other minor label changes.
Product Name: Zorvec Epicaltrin
EPA Registration Number: 352-892
Application Date: February 21, 2022
Decision Number: 583695
Dear Brenda Ferguson:
The Agency is in receipt of your Application for Pesticide Notification under Pesticide
Registration Notice (PRN) 98-10 for the above referenced product. The Registration Division
(RD) has conducted a review of this request for its applicability under PRN 98-10 and finds that
the action requested falls within the scope of PRN 98-10.
The label submitted with the application has been stamped “NOTIFICATION” and placed in our
records.
The brand name, “Zorvec Epicaltrin” and alternate brand name, “DuPont Zorvec Epicaltrin”
has been added to the product record.
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 (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) lists 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.
Page 2 of 2
EPA Reg. No. 352-892
Decision No. 583695
If you have any questions, please contact Kevin Ulrich at Ulrich.kevin@epa.gov.
Sincerely,
Kristy Crews, Product Manager 22
Fungicide Branch
Registration Division (7505T)
Office of Pesticide Programs
Enclosure: Stamped Label
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 1
(Bulk/tote base label):
OXATHIAPIPROLIN GROUP 49 FUNGICIDE
DuPont™ ZORVECorvec™
EPICALTRINEpicaltrin™
[Alternate Brand Name: DuPont™ Zorvec™ Epicaltrin™]
Fungicide
GROUP U15 FUNGICIDE
Suspension Concentrate
Active Ingredient By Weight
Oxathiapiprolin 18.7%
Other Ingredients 81.3%
TOTAL 100.0%
Contains 1.67 pounds of oxathiapiprolin per gallon of product
EPA Reg. No. 352-892 EPA Est. No.______
Nonrefillable Container
Net:________________
OR
Refillable Container
Net:________________
KEEP OUT OF REACH OF CHILDRENKeep Out Of Reach Of Children
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).
Agricultural Use Requirements
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR
Part 170. Refer to the label booklet under "Agricultural Use Requirements" in the Directions for Use
section for information about this standard.
First Aid
For questions regarding emergency medical treatment, you may contact 1-800-992-5994 for
information.
Precautionary Statements
Hazards to Humans and Domestic Animals
Personal Protective Equipment (PPE)
352-892
07/24/2023
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 2
Mixers, loaders, applicators, and other handlers must wear:
• Long-sleeved shirt
• Long pants
• Shoes and socks
Follow the manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washables
exist, use detergent and hot water. Keep and wash PPE separately from other laundr y.
Engineering Controls 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:
• Wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet.
• Remove clothing/PPE immediately 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.
STORAGE AND DISPOSAL
PESTICIDE STORAGE: Keep container closed when not in use. Always store pesticides in the original
container only, away from other pesticides, food, pet food, feed, seed, fertilizers, and veterinary
supplies. If a leaky container must be contained within another, mark the outer container to identify the
contents. Storage areas must be locked and secure from vandalism, with precautionary signs posted.
The storage area must be dry, well-lit, and well- ventilated. Keep pesticide storage areas clean. Clean
up any spills promptly. Protect pesticide containers from extreme heat and cold. Store herbicides,
insecticides and fungicides in separate areas within the storage unit. Place liquid formulations on lower
shelves and dry formulations above. Maintaining a spill kit and fire extinguisher on hand and having
emergency phone numbers posted will allow you to be prepared for emergencies. If spill cleanup PPE
is stored nearby, but outside the pesticide storage area, it will be accessible when neede d.
PESTICIDE DISPOSAL: Wastes resulting from the use of this product must be disposed of on site or
at an approved waste disposal facility.
CONTAINER HANDLING: Refer to the Net Contents section of this products labeling for the
applicable “Nonrefillable Container” or “Refillable Container” designation.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Equal to or Less Than 5 Gallons):
Nonrefillable container. Do not reuse or refill this container. Triple rinse container (or equivalent)
promptly after emptying. Triple rinse as follows: Empty the remaining contents into application
equipment or a mix tank and drain for 10 seconds after the flow begins to drip. Fill the container 1/4 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 thi s
procedure two more times. Then, for Plastic Containers, offer for recycling if available or puncture and
dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local
ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or
puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local
authorities.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Greater Than 5 Gallons): Nonrefillable
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 3
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 1/4 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, for Plastic Containers, offer for
recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn,
unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or
reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures
approved by state and local authorities.
Nonrefillable Rigid Plastic and Metal Containers, e.g., Intermediate Bulk Containers [IBC] (Size
or Shape Too Large to be Tipped, Rolled or Turned Upside Down): Nonrefillable container. Do not
reuse or refill this container. Clean container promptly after emptying the contents from this container
into application equipment or mix tank and before final disposal using the following pressure rinsing
procedure. Insert a lance fitted with a suitable tank cleaning nozzle into the container and ensure that
the water spray thoroughly covers the top, bottom and all sides inside the container. The nozzle
manufacturer generally provides instructions for the appropriate spray pressure, spray dur ation and/or
spray volume. If the manufacturers instructions are not available, pressure rinse the container for at
least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% of the
container volume. Drain, pour or pump rinsate into application equipment or rinsate collection system.
Repeat this pressure rinsing procedure two more times. Then, for Plastic Containers, offer for recycling
if available or puncture and dispose of in a sanitary landfill, or by incineration. For Metal Containers,
offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary
landfill, or by other procedures approved by state and local authorities.
All Refillable Containers: Refillable container. Refilling Container: Refill this container with Zorvec™
Epicaltrin™ fungicide containing oxathiapiprolin only. Do not reuse this container for any other purpose.
Cleaning before refilling is the responsibility of the refiller. Prior to refilling, inspect carefully fo r damage
such as cracks, punctures, abrasions, worn out threads and closure devices. If damage is found, do
not use container, contact Corteva at the number below for instructions. Check for leaks after refilling
and before transporting. If leaks are found, do not reuse or transport container, contact Corteva at the
number below for instructions. Disposing of Container: Do not reuse this container for any other
purpose other than refilling (see preceding). Cleaning the container before final disposal is the
responsibility of the person disposing of the container. To clean the container before final disposal, use
the following pressure rinsing procedure. Insert a lance fitted with a suitable tank cleaning nozzle into
the container and ensure that the water spray thoroughly covers the top, bottom and all sides inside the
container. The nozzle manufacturer generally provides instructions for the appropriate spray pressure,
spray duration and/or spray volume. If the manufacturers instructions are not available, pressure rinse
the container for at least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse
volume of 10% of the container volume. Drain, pour or pump rinsate into application equipment or
rinsate collection system. Repeat this pressure rinsing procedure two more times. Then, for Plastic
Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by
incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for
recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or
by other procedures approved by state and local authorities.
Refer to inside of label booklet for additional precautionary information and Directions for Use.
Notice: Read the entire label. Use only according to label directions. Before using this product, read
Warranty Disclaimer, Inherent Risks of Use and Limitation of Remedies at end of label booklet. If
terms are unacceptable, return at once unopened.
Do not contaminate water, food, or feed by storage and disposal.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 4
Do not transport if container is damaged or leaking. If the container is damaged, leaking or obsolete, or in
the event of a major spill, fire or other emergency, contact Corteva at 1-800-992-5994, day or night.
EPA Reg. No. 352-892 EPA Est. No.______
™® Trademarks of Corteva Agriscience and its affiliated companies
Produced for
Corteva Agriscience LLC
9330 Zionsville Road
Indianapolis, IN 46268 NET CONTENTS: ____
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 1
Nonrefillable Container EPA Est. No._____
Net:________________
OR
Refillable Container
Net:________________
FIRST AID
For questions regarding emergency medical treatment, you may contact 1-800-441-3637 for
information.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Mixers, loaders, applicators, and other handlers must wear:
• Long-sleeved shirt
• Long pants
• Shoes and socks
User Safety Requirements
Follow the manufacturer's 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.
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 wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet.
Users should remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly
and put on clean clothing.
Users should remove PPE immediately after handling this product. Wash the outside of gloves
before removing. As soon as possible, wash thoroughly and change into clean clothing.
ENVIRONMENTAL HAZARDS
This product is toxic to aquatic invertebrates. 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. Do not
contaminate water when disposing of equipment washwater or rinsate.[GW1]
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 1
Booklet cover / small container base label):
OXATHIAPIPROLIN GROUP 49 FUNGICIDE
Zorvec™ Epicaltrin™
[Alternate Brand Name: DuPont™ Zorvec™ Epicaltrin™]
Fungicide
Suspension Concentrate
Active Ingredient By Weight
Oxathiapiprolin 18.7%
Other Ingredients 81.3%
TOTAL 100.0%
Contains 1.67 pounds of oxathiapiprolin per gallon of product
Keep Out Of Reach Of Children
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).
Agricultural Use Requirements
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR
Part 170. Refer to the label booklet under "Agricultural Use Requirements" in the Directions for Use
section for information about this standard.
Refer to inside of label booklet for additional precautionary information including First Aid and
Directions for Use.
Notice: Read the entire label. Use only according to label directions. Before using this product, read
Warranty Disclaimer, Inherent Risks of Use and Limitation of Remedies at end of label booklet. If
terms are unacceptable, return at once unopened.
Do not contaminate water, food, or feed by storage and disposal.
Do not transport if container is damaged or leaking. If the container is damaged, leaking or obsolete, or in
the event of a major spill, fire or other emergency, contact Corteva at 1-800-992-5994, day or night.
EPA Reg. No. 352-892 EPA Est. _______
™® Trademarks of Corteva Agriscience and its affiliated companies
Produced for
Corteva Agriscience LLC
9330 Zionsville Road
Indianapolis, IN 46268
NET CONTENTS: ____
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 1
[Booklet page 1 through end):
First Aid
For questions regarding emergency medical treatment, you may contact 1-800-992-5994 for
information.
Precautionary Statements
Hazards to Humans and Domestic Animals
Personal Protective Equipment (PPE)
Mixers, loaders, applicators, and other handlers must wear:
• Long-sleeved shirt
• Long pants
• Shoes and socks
Follow the manufacturer's 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.
Engineering Controls 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:
• Wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet.
• Remove clothing/PPE immediately 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.
Environmental Hazards
This product is toxic to aquatic invertebrates. 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. Do not
contaminate water when disposing of equipment washwater or rinsate.
Directions for Use
DIRECTIONS FOR USE
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. DuPont™
ZORVECZorvec™ EPICALTRINEpicaltrin™ fungicide (referred to below as ZORVEC
EPICALTRINZorvec Epicaltrin fungicide, ZORVEC EPICALTRIN fungicide, or ZORVEC
EPICALTRINZorvec Epicaltrin) must be used only in accordance with instructions on this label, in
separately issued labeling or exemptions under FIFRA (Supplemental Labels, Special Local Need
Registration, FIFRA Section 18 exemptions), or as otherwise permitted by FIFRA. Always read the entire
label including the Limitation of Warranty and Liability.Terms and Conditions of Use.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 2
AGRICULTURAL USE REQUIREMENTSAgricultural 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 the label about personal protective
equipment (PPE), and restricted-entry interval, and notification to workers (as applicable). The
requirements in this box only apply to uses of this product that are covered by the Worker Protection
Standard.
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 State or Tribal agency responsible for pesticide regulation.
Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 4
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
• Shoes and socks
STORAGE AND DISPOSAL
PESTICIDE STORAGE: Keep container closed when not in use. Always store pesticides in the original
container only, away from other pesticides, food, pet food, feed, seed, fertilizers, and veterinary
supplies. If a leaky container must be contained within another, mark the outer container to identify the
contents. Storage areas must be locked and secure from vandalism, with precautionary signs posted.
The storage area must be dry, well-lit, and well- ventilated. Keep pesticide storage areas clean. Clean
up any spills promptly. Protect pesticide containers from extreme heat and cold. Store herbicides,
insecticides and fungicides in separate areas within the storage unit. Place liquid formulations on lower
shelves and dry formulations above. Maintaining a spill kit and fire extinguisher on hand and having
emergency phone numbers posted will allow you to be prepared for emergencies. If spill cleanup PPE
is stored nearby, but outside the pesticide storage area, it will be accessible when needed.
PESTICIDE DISPOSAL: Wastes resulting from the use of this product must be disposed of on site or
at an approved waste disposal facility.
CONTAINER HANDLING: Refer to the Net Contents section of this products labeling for the
applicable “Nonrefillable Container” or “Refillable Container” designation.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Equal to or Less Than 5 Gallons):
Nonrefillable container. Do not reuse or refill this container. Triple rinse container (o r 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 1/4 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, for Plastic Containers, offer for recycling if available or puncture and
dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local
ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or
puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local
authorities.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Greater Than 5 Gallons): Nonrefillable
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 3
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 1/4 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, for Plastic Containers, offer for
recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn,
unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or
reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures
approved by state and local authorities.
Nonrefillable Rigid Plastic and Metal Containers, e.g., Intermediate Bulk Containers [IBC] (Size
or Shape Too Large to be Tipped, Rolled or Turned Upside Down): Nonrefillable container. Do not
reuse or refill this container. Clean container promptly after emptying the contents from this container
into application equipment or mix tank and before final disposal using the following pressure rinsing
procedure. Insert a lance fitted with a suitable tank cleaning nozzle into the container and ensure that
the water spray thoroughly covers the top, bottom and all sides inside the container. The nozzle
manufacturer generally provides instructions for the appropriate spray pressure, spray duration and/or
spray volume. If the manufacturers instructions are not available, pressure rinse the container for at
least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% of the
container volume. Drain, pour or pump rinsate into application equipment or rinsate collection system.
Repeat this pressure rinsing procedure two more times. Then, for Plastic Containers, offer for recycling
if available or puncture and dispose of in a sanitary landfill, or by incineration. For Metal Containers,
offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary
landfill, or by other procedures approved by state and local authorities.
All Refillable Containers: Refillable container. Refilling Container: Refill this container with Zorvec
Epicaltrin fungicide containing oxathiapiprolin only. Do not reuse this container for any other purpose.
Cleaning before refilling is the responsibility of the refiller. Prior to refilling, inspect carefully for damage
such as cracks, punctures, abrasions, worn out threads and closure devices. If damage is found, do
not use container, contact Corteva at the number below for instructions. Check for leaks after refilling
and before transporting. If leaks are found, do not reuse or transport container, contact Corteva at the
number below for instructions. Disposing of Container: Do not reuse this container for any other
purpose other than refilling (see preceding). Cleaning the container before final disposal is the
responsibility of the person disposing of the container. To clean the container before final disposal, use
the following pressure rinsing procedure. Insert a lance fitted with a suitable tank cleaning nozzle into
the container and ensure that the water spray thoroughly covers the top, bottom and all sides inside the
container. The nozzle manufacturer generally provides instructions for the appropriate spray pressure,
spray duration and/or spray volume. If the manufacturers instructions are not available, pressure rinse
the container for at least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse
volume of 10% of the container volume. Drain, pour or pump rinsate into application equipment or
rinsate collection system. Repeat this pressure rinsing procedure two more times. Then, for Plastic
Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by
incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for
recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or
by other procedures approved by state and local authorities.
Product Information
ZORVEC EPICALTRINZorvec Epicaltrin fungicide, is a suspension concentrate containing
oxathiapiprolin, and is recommended for use by soil application for the control or suppression of the
diseases listed on this label.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 4
Restrictions
• Different application methods (foliar and soil) must not be combined when protecting a crop during a
growing season.
• Use this product only in commercial and farm plantings. Do not use in greenhouses.
• Do not use for home plantings.
• ZORVEC EPICALTRIN fungicide must be used only in accordance with this label.
• Do not formulate this product into other end-use products.
PRODUCT INFORMATION
ZORVEC EPICALTRINZorvec Epicaltrin fungicide is active against selective Oomycete diseases listed on
this label and has preventive, residual, curative, eradicative and antisporulant activity. ZORVEC
EPICALTRINZorvec Epicaltrin is locally systemic, translaminar, and moves systemically in the xylem. See
directions below for specific crop/disease recommendations.
Restrictions
• Different application methods (foliar and soil) must not be combined when protecting a crop during a
growing season.
• Use this product only in commercial and farm plantings. Do not use in greenhouses.
• Do not use for home plantings.
• ZORVEC EPICALTRINZorvec Epicaltrin fungicide must be used only in accordance with this label.
• Do not formulate this product into other end-use products.
Mode-of-action
Oxathiapiprolin, the active ingredient in ZORVEC EPICALTRINZorvec Epicaltrin, acts as an oxysterol
binding protein modulator in fungal cells.
Cultivar/Varietal Crop Safety
Not all crops within a crop group, and not all varieties, cultivars or hybrids of c rops, have been individually
tested for crop safety. It is not possible to evaluate for crop safety all applications of ZORVEC
EPICALTRIN Zorvec Epicaltrin on all crops within a crop group, on all varieties, cultivars, or hybrids of
those crops, or under all environmental conditions and growing circumstances. To test for crop safety,
apply the product in accordance with the label instructions to a small area of the target crop to ensure that
a phytotoxic response will not occur, especially where the application is a new use of the product by the
applicator.
INTEGRATED PEST MANAGEMENT
Corteva DuPont recommends the use of Integrated Pest Management (IPM) programs to control pests.
ZORVEC EPICALTRINZorvec Epicaltrin may be used as part of an IPM program which can include
biological, cultural, and genetic practices aimed at preventing economic pest damage. Application of this
product should be based on IPM principles and practices including field scouting or other detection
methods, correct target pest identification, population monitoring, and treating when disease forecasting
models reach locally determined action levels. Consult your state cooperative extension service,
professional consultants, or other qualified authorities to determine the appropriate manag ement, cultural
practice and treatment threshold levels for the specific crop, geography and diseases.
RESISTANCE MANAGEMENT
ZORVEC EPICALTRINZorvec Epicaltrin contains the active ingredient oxathiapiprolin which is novel and
is currently assigned the Code U15 49 by the Fungicide Resistance Action Committee (FRAC).
Oxathiapiprolin inhibits the oxysterol-binding protein (OSBP). Repeated use of products for control of
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 5
specific plant pathogens may lead to selection of resistant strains of fungi and result in a reduction of
disease control. A disease management program for ZORVEC EPICALTRINZorvec Epicaltrin that
includes rotation and tank mixing with fungicides with a different mode of action is essential to reduce the
risk of fungicide resistance development. Do not tank mix ZORVEC EPICALTRINZorvec Epicaltrin with
any fungicide for which resistance to the target disease has developed. Make no more than 2 sequential
applications before rotating to a fungicide with a different mode of action. Do not follow soil applications of
ZORVEC EPICALTRINZorvec Epicaltrin with foliar applications of ZORVEC ENICADEZorvec Enicade™.
Different application methods (foliar and soil) must not be combined when protecting a crop during a
growing season. For guidance on a particular crop and disease control situation, consult your state
extension specialist for official state recommendations.
TANK MIXTURES
Always follow the tank mix instructions of the product label that is most restrictive. Apply at least the
minimum labeled rate of each fungicide in the tank mix.
The crop safety of all tank mixtures with ZORVEC EPICALTRINZorvec Epicaltrin which may include
physically compatible pesticides, fertilizers, adjuvants, and/or additives, has not been tested. When using
a tank mixture with ZORVEC EPICALTRINZorvec Epicaltrin, it is important to understand crop safety. To
test for crop safety prepare a small volume of the intended tank mixture, apply it to an area of the target
crop as directed by both this label and the tank mix partner product labels, and observe the treated crop
to ensure that a phytotoxic response does not occur. DuPont Corteva will not be responsible for any crop
injury arising from the use of a tank mixture that is not specifically described on ZORVEC
EPICALTRINZorvec Epicaltrin product labeling or in other DuPont Corteva product use instructions.
Some materials including oils, surfactants, adjuvants, and pesticide formulations when applied
individually, sequentially, or in tank mixtures may solubilize the plant cuticle, facilitate penetration into
plant tissue, and increase potential for crop injury.
Always follow the tank mix instructions of the product label that is the most restrictive. Consult a Corteva
DuPont representative or local agricultural authorities for more information concerning tank mixtu res.
PHYSICAL COMPATIBILITY
ZORVEC EPICALTRINZorvec Epicaltrin is physically compatible with many commonly used fungicides,
herbicides, insecticides, biological control products, liquid fertilizers, non-ionic surfactants, crop oils,
methylated seed oils and drift control additives. However, since the formulations of products change, it is
important to test the physical compatibility of desired tank mixes and check for undesirable physical
effects, including settling out or flocculation. To determine physical compatibility, add the proportions of
the tank mix products and water to a small container, mix thoroughly and allow to stand for 20 minutes. If
the combination remains mixed, or can be re-mixed readily, it may be considered physically compatible.
APPLICATION INFORMATION
Mixing Instructions - ZORVEC EPICALTRINZorvec Epicaltrin alone
1. Fill clean spray tank 1/2 - 2/3 full of water.
2. While agitating, add the required amount of ZORVEC EPICALTRIN,Zorvec Epicaltrin continuing
agitation until the product is completely dispersed.
3. Continue filling the tank, with agitation. Spray immediately after preparation, continuing agitation
during spraying.
Tank Mixing Sequence
When using in a tank-mix, add different formulation types in the sequence indicated below. Allow time for
complete mixing and dispersion after addition of each product.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 6
1. Water soluble bag (WSB).
2. Water soluble granules (SG).
3. Water dispersible granules (WG).
4. Wettable powders (WP).
5. Water-based suspension concentrates (SC). (ZORVEC EPICALTRINZorvec Epicaltrin).
6. Capsule suspension (CS).
7. Suspo emulsion (SE).
8. Oil dispersion (OD).
9. Emulsion in water (EW).
10. Emulsifiable concentrates (EC).
11. Water-soluble concentrates (SL).
12. Adjuvants, surfactants, oils.
13. Soluble fertilizers.
14. Drift retardants.
SOIL APPLICATIONS
For suppression or control of soil borne diseases, as recommended in this label, ZORVEC
EPICALTRINZorvec Epicaltrin must be applied in a manner that ensures the product solution adequately
saturates the target crop root/crown zone. When applied to the root/crown zone before, during, or soon
after sowing or transplanting the crop, ZORVEC EPICALTRINZorvec Epicaltrin will suppress or control
certain seedling root rot and crown diseases that limit crop stand establishment.
For soil application, apply ZORVEC EPICALTRINZorvec Epicaltrin using drip application, transplant water
application (water wheel or continuous stream transplanters), surface band or directed application, or in-
furrow application. If the application method does not move the product to the target root/crown disease
zone, the application must be followed with irrigation or cultivation to correctly place the product for
disease control.
Drip application
See Table 1, below, and specific drip chemigation instructions under Chemigation.
Transplant Water application
Transplants should be adequately watered before transplanting. Ensure transplant water vol ume is
sufficient to thoroughly wet the root zone.
See Table 1 for Continuous Stream Transplanters. Ensure 4-8 oz transplant water/ transplant depending
on sandy (4 oz) vs silty soil (6-8 oz).
For Water Wheel transplanters, use the plant population to determine the rate per plant.
Example: 38.6 fl oz product/acre x acre/4356 squash plants = 0.00886 fl oz product/squash plant .
Surface Band or Directed application
Apply in a 4- to 12-inch band. See Table 1 for rates. Follow application with cultivation or irrigation (0.5 - 1
inch) to move ZORVEC EPICALTRINZorvec Epicaltrin to the target disease zone.
Table 1. Soil application rates for ZORVEC EPICALTRINZorvec Epicaltrin product/1000 feet of row,
based on plant row spacing.
ZORVEC EPICALTRINZorvec Epicaltrin Conversion Chart for Drip (Trickle) Chemigation, Continuous Transplant Water, and
Directed/Banded/In-Furrow application
Corresponding Rate in fl oz product/1000 row ft; based on planted row spacing (in inches) of:
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 7
field rate fl
oz/acre
30 34 36 48 60 72 84
2.4 0.14 0.16 0.17 0.22 0.28 0.33 0.39
4.8 0.28 0.31 0.33 0.44 0.55 0.66 0.77
9.6 0.55 0.62 0.66 0.88 1.10 1.32 1.54
19.2 1.10 1.25 1.32 1.76 2.20 2.65 3.09
Transplant Tray Application
Apply as a foliar spray to the transplants in the transplant tray 24-48 hours prior to transplanting.
Immediately water the spray off the foliage into the transplant tray soil, not watering past soil saturation.
Wait 24 hours to transplant.
For this application, the acre of transplants receives the full recommended acre rate for transplant tray
application, applied as a foliar spray, which is then washed into the transplant cubes. Transplant cubes
should be on the dry side at the beginning of this treatment.
CROP ROTATION
Table 2. Crop Rotation Intervals for ZORVEC EPICALTRINZorvec Epicaltrin
Crop, Crop Group, or Subgroup
Plantback Restriction (in Days) following Last
Application of ZORVEC EPICALTRINZorvec
Epicaltrin
Tuberous and Corm Vegetables (Subgroup 1C) 0
Bulb Vegetables (Group 3-07) 0
Leafy Greens (Subgroup 4A) 0
Brassica, Head and Stem (Subgroup 5A) 0
Peas, Succulent Shelled 0
Peas, Edible-Podded 0
Fruiting Vegetables (Group 8-10) 0
Cucurbit Vegetables (Group 9) 0
Strawberries 0
Herbs and Spices (Group 19) 0
Oilseed (Group 20) 0
Ginseng 0
Tobacco 0
Cereals (Group 15,16) 30
Grass Animal Feeds (Group 17) 30
Legume Vegetables, except succulent shelled and
edible-podded peas
180
Non-grass Animal Feed (Group 18) 180
Peanuts 180
All other crops not listed 180
Table 3. ZORVEC EPICALTRINZorvec Epicaltrin fungicide labeled Crop and Crop groups, Pre-
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 8
Harvest Intervals, Maximum Single Application Rates, and Total Rates allowed per year.
Crop or Crop Group or
Subgroup, with examples
Minimum Time from
Application to Harvest
(PHI days)
Maximum Rate per Acre
per Application
(fl oz product)
Maximum Product
per Acre per Year
(fl oz product)
Cucurbit Vegetables
(Crop Group 9)
cucumber, cantaloupe,
watermelon, squash
0 19.2 38.6
Fruiting Vegetables
(Crop Group 8-10)
tomato, pepper
0 19.2 38.6
Leafy Greens
(Crop Subgroup 4A)
lettuce, spinach
0 19.2 38.6
Tobacco* 7 19.2 38.6
* Not for use in California on Tobacco
USE RATES AND APPLICATION INSTRUCTIONS
Crop/Crop Group Target Diseases Use Rate per Acre (fl oz) Remarks
Cucurbit Vegetables
(Crop Group 9)
Chayote (fruit);
Chinese waxgourd (Chinese
preserving melon);
citron melon;
cucumber;
gherkin;
gourd, edible (includes hyotan,
cucuzza, hechima, Chinese
okra);
Momordica spp. (includes
balsam apple, balsam pear,
bittermelon, Chinese
cucumber);
muskmelon (includes
cantaloupe - other examples in
footnote (1));
pumpkin;
squash, summer (includes
crookneck squash, scallop
squash, straightneck squash,
vegetable marrow, zucchini);
squash, winter (includes
butternut squash, calabaza,
hubbard squash, acorn squash,
spaghetti squash);
watermelon
Phytophthora Blight
(Phytophthora capsici)
2.4 - 19.2 fl oz Apply at plant, in furrow, drip
or in transplant water. See
specific Soil Application
Directions in this label.
Use the higher rates for
heavier soils, for longer
application intervals, or for
susceptible varieties.
Restrictions
Soil application
The minimum time from application to harvest (PHI) is 0 days. Do not follow soil applications of ZORVEC
EPICALTRINZorvec Epicaltrin with foliar applications of ZORVEC ENICADEZorvec Enicade. Use either soil applications or
foliar applications but not both for disease control. Do not make more than four applications of product per crop. Do not
exceed 38.6 fl oz ZORVEC EPICALTRINZorvec Epicaltrin soil use per acre per year.
Make no more than 2 sequential applications before rotating to a fungicide with a different mode of action. Do not use Zorvec
EpicaltrinZORVEC EPICALTRIN for more than 33% of the total soil fungicide applications. The minimum soil application interval is 7
days. (1) Muskmelon: includes true cantaloupe, cantaloupe, casaba, Santa Claus melon, crenshaw melon, honeydew melon, honey balls,
Persian melon, golden pershaw melon, mango melon, pineapple melon, snake melon.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 9
Crop/Crop Group Target Diseases Use Rate per Acre (fl oz) Remarks
Fruiting Vegetables
(Crop Group 8-10)
African eggplant;
bush tomato;
bell pepper;
cocona;
currant tomato;
eggplant;
garden huckleberry;
goji berry;
groundcherry;
martynia;
naranjilla;
okra;
pea eggplant;
pepino;
nonbell pepper;
roselle;
scarlet eggplant;
sunberry;
tomatillo;
tomato;
tree tomato
Phytophthora Blight and
Crown Rot
(Phytophthora capsici)
2.4 - 19.2 fl oz Apply at plant, in furrow, drip
or in transplant water. See
specific Soil Application
Directions in this label.
Use the higher rates for
heavier soils, for longer
application intervals, or for
susceptible varieties.
Restrictions
Soil application
The minimum time from application to harvest (PHI) is 0 days. Do not follow soil applications of ZORVEC
EPICALTRINZorvec Epicaltrin with foliar applications of ZORVEC ENICADEZorvec Enicade. Use either soil applications or
foliar applications but not both for disease control. Do not make more than four applications of product per crop. Do not
exceed 38.6 fl oz ZORVEC EPICALTRINZorvec Epicaltrin soil use per acre per year.
Make no more than 2 sequential applications before rotating to a fungicide with a different mode of action. Do not use ZORVEC
EPICALTRINZorvec Epicaltrin for more than 33% of the total soil fungicide applications. The minimum soil application interval is 7
days.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 10
Crop/Crop Group Target Diseases Use Rate per Acre (fl oz) Remarks
Leafy Greens
(Crop Subgroup 4A)
Amaranth;
arugula;
chervil;
chrysanthemum, edible-
leaved;
chrysanthemum, garland;
corn salad;
cress, garden;
cress, upland;
dandelion;
dock;
endive;
lettuce, head and leaf;
orach;
parsley;
purslane, garden;
purslane, winter;
radicchio;
spinach;
spinach, New Zealand;
spinach, vine
Downy Mildew
(Bremia lactucae)
4.8 - 19.2 fl oz Apply at plant, in furrow, drip
or in transplant water.
See specific Soil Application
Directions in this label.
Use the higher rates for
heavier soils, for longer
application intervals, or for
susceptible varieties.
Restrictions
Soil applications
The minimum time from application to harvest (PHI) is 0 days. Do not follow soil applications of ZORVEC
EPICALTRINZorvec Epicaltrin with foliar applications of ZORVEC ENICADEZorvec Enicade. Use either soil applications or
foliar applications but not both for disease control. Do not make more than four applications of product per crop. Do not
exceed 38.6 fl oz ZORVEC EPICALTRINZorvec Epicaltrin soil use per acre per year.
Make no more than 2 sequential applications before rotating to a fungicide with a different mode of action. Do not use ZORVEC
EPICALTRIN Zorvec Epicaltrin for more than 33% of the total soil fungicide applications. The minimum soil application interval is 7
days.
Crop/Crop Group Target Diseases Use Rate per Acre (fl oz) Remarks
Tobacco* Black Shank
(Phytophthora parasitica var.
nicotianae)
2.4 fl oz Apply as a foliar spray to the
tobacco transplants in the
transplant tray 24-48 hours
prior to transplanting.
Immediately water the spray
off the foliage into the
transplant tray soil, not
watering past soil saturation.
Wait 24 hours to transplant.
See specific Tray Transplant
Directions in this label for
further details.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 11
Black Shank
(Phytophthora parasitica var.
nicotianae)
4.8 - 19.2 fl oz Apply at plant in furrow, or in
transplant water. See
specific Soil Application
Directions in this label.
Use the higher rates for
heavier soils, for longer
application intervals, or for
susceptible varieties.
Black Shank
(Phytophthora parasitica var.
nicotianae)
4.8 - 19.2 fl oz Apply soil directed or
banded applications at 1st
cultivation and layby. See
specific Soil Application
Directions in this label.
Use the higher rates for
heavier soils, for longer
application intervals, or for
susceptible varieties.
Restrictions
Soil or soil-directed application (includes Transplant Tray application)
The minimum time from application to harvest (PHI) is 7 days. Do not follow soil applications of ZORVEC
EPICALTRINZorvec Epicaltrin with foliar applications of ZORVEC ENICADEZorvec Enicade. Use either soil applications or
foliar applications but not both for disease control. Do not make more than four applications of product per crop. Do not
exceed 38.6 fl oz ZORVEC EPICALTRINZorvec Epicaltrin soil use per acre per year.
Make no more than 2 sequential applications before rotating to a fungicide with a different mode of action. The minimum soil
application interval is 7 days.
* Not for use in California on Tobacco
Chemigation
Apply ZORVEC EPICALTRINZorvec Epicaltrin only through drip (trickle) or strip tubing irrigation systems.
Do not connect any irrigation system (including greenhouse systems) used for pesticide applications to a
public water system unless the pesticide label-prescribed safety devices for public water systems are in
place. 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 at least 60 days out of the year.
See "Required System Safety Devices for All Chemigation and Public Water Systems" at the end of the
Chemigation section.
APPLICATION INSTRUCTIONS
DRIP (TRICKLE)
ZORVEC EPICALTRINZorvec Epicaltrin must be applied in a manner that ensures the product is in the
root zone. ZORVEC EPICALTRIN Zorvec Epicaltrin must be in the root zone to provide effective control
of target pests.
ZORVEC EPICALTRINZorvec Epicaltrin is most effective when it is applied so that the roots are at or
near the site of application; manage irrigation so that significant quantities of ZORVEC
EPICALTRINZorvec Epicaltrin remain in the root zone.
1. Do not begin applications until after crop emergence in direct seeded crops.
2. Do not make applications if soil moisture is below the level required for active plant growth.
3. This product must be applied uniformly in the root zone or poor performance may result. Drip tape or
emitters must be located within or directly adjacent to the root zone.
4. The drip system must be properly designed, free of leaks, and operated in a manner that provides
uniform application of water throughout the field.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 12
5. In most situations, this product should be applied during the first 1/3 of the irrigation cycle, starting
just after the system has come up to pressure.
6. The minimum injection period is the time that it takes water to move from the injection point to the
furthest emitter in the irrigation zone (propagation time). If this time is not known, it can be calculated
by measuring the time for a soluble dye to move from the injection point to the farthest emitter. A
longer injection improves uniformity throughout the zone, but needs to allow for at least an equal
period of water to flush the system and move the product through the soil.
7. ZORVEC EPICALTRINZorvec Epicaltrin must not be applied at the same time that a drip irrigation
line clean out product is being used as performance may be reduced.
Directions for Chemigation:
Preparation
A pesticide tank is recommended for the application of ZORVEC EPICALTRINZorvec Epicaltrin in drip
chemigation systems. Thoroughly clean the injection system and tank of any fertilizer or chemical
residues using a standard clean-out procedure. Dispose of any residues in accordance with State and
Federal laws. With the mix tank 1/4 to 1/2 full with water and the agitator running, measure the required
amount of ZORVEC EPICALTRINZorvec Epicaltrin and add it to the tank. Then add additional water to
bring your total pesticide mixture up to the desired volume for your application. Note: Always add the
ZORVEC EPICALTRINZorvec Epicaltrin to water, never put ZORVEC EPICALTRIN Zorvec Epicaltrin into
a dry tank or other mixing equipment without first adding water. See "Tank Mixing Sequence" section of
the container label for tank mixing sequence. Continue to agitate the mixture throughout the application
process. Use mechanical or hydraulic agitation; do not use air agitation.
Injection into Chemigation Systems
Inject the proper amount of ZORVEC EPICALTRINZorvec Epicaltrin into the irrigation water flow using a
positive displacement injection pump or a Venturi injector. Injection should occur at a point in the main
irrigation water flow to ensure thorough mixing with the irrigation water.
Uniform Water Distribution
The irrigation system used for application of ZORVEC EPICALTRINZorvec Epicaltrin must provide for
uniform distribution of ZORVEC EPICALTRINZorvec Epicaltrin treated water. Non-uniform distribution can
result in crop injury, lack of effectiveness or illegal pesticide residues in or on the crop being treated.
Ensure the drip chemigation system is operating properly to uniformly distribute the chemigation
application to the crop. Contact the equipment manufacturer, the local University Extension agent or other
experts if you have questions about achieving uniform distribution of the application.
Monitoring of Chemigation Applications
A person knowledgeable of the chemigation system and responsible for its operation, or under the
supervision of a responsible person, shall shut the system down and make necessary adjustments should
the need arise. Wear the personal protective equipment as defined in the PPE section of the label for
applicators and other handlers when making adjustments or repairs on the chemigation system when
ZORVEC EPICALTRINZorvec Epicaltrin is in the irrigation water.
Operation
Start the water pump and let the system achieve the desired pressure before starting the injector. Start
the injector. When the application is finished, allow the entire irrigation and injector system to be
thoroughly flushed clean before stopping the system.
Cleaning the System
Thoroughly clean the injection system and tank of any fertilizer or chemical residues using a standard
clean-out procedure. Dispose of any residues in accordance with State and Federal laws. Consult your
owners manual or your local equipment dealer for cleanout procedures for your injection system .
Required System Safety Devices and Instructions for All Chemigation and Public Water Systems
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 13
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.
4. The system must contain functional 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 device, such as a positive displacement pump or a Venturi injector, that
provides uniform injection of the product, is effectively designed and constructed of materials
compatible with the product, and is capable of being fitted with a system interlock.
7. Chemigation systems connected to public water systems must contain a functional, reduced -pressure
zone, backflow 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.
SPRAY TANK CLEANOUT
Prior to application, start with clean, well maintained application equipment. Immediately following
application, thoroughly clean all spray equipment to reduce the risk of forming hardened deposits which
might become difficult to remove.
Drain application equipment. Thoroughly rinse and flush all application equipment with clean water. Take
all necessary safety precautions when cleaning equipment. Do not clean near wells, water sources or
desirable vegetation. Dispose of waste rinse water in accordance with local regulations.
SPRAY DRIFT MANAGEMENT
The interaction of many equipment and weather-related factors determines the potential for spray drift.
The applicator is responsible for considering all these factors when making application decisions.
Avoiding spray drift is the responsibility of the applicator.
IMPORTANCE OF DROPLET SIZE
The most effective drift management strategy is to apply the largest droplets which are consistent with
pest control objectives. The presence of sensitive species nearby, the environmental conditions, and pest
pressure may affect how an applicator balances drift control and coverage. Applying larger droplets
reduces drift potential, but will not prevent drift if applications are made improperly or under unfavorable
environmental conditions.
A droplet size classification system describes the range of droplet sizes produced by spray nozzles. The
American Society of Agricultural and Biological Engineers (ASABE) provide a Standard that describes
droplet size spectrum categories defined by a number of reference nozzles (fine, coarse, etc.). Droplet
spectra resulting from the use of a specific nozzle may also be described in terms of volume mean
diameter (VMD). Coarser droplet size spectra have larger VMDs and lower drift potential.
CONTROLLING DROPLET SIZE - GROUND APPLICATION
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 14
• Nozzle Type - Select a nozzle type that is designed for the intended application. With most nozzle
types, narrower spray angles produce larger droplets. The use of low-drift nozzles will reduce drift
potential.
• Pressure - The lowest spray pressures recommended for the nozzle produce the largest droplets.
Higher pressure reduces droplet size and does not improve canopy penetration. When higher flow
rates are needed, using a higher-capacity nozzle instead of increasing pressure results in the
coarsest droplet spectrum.
• Flow Rate/Orifice Size - Using the highest flow rate nozzles (largest orifice) that are consistent with
pest control objectives reduces the potential for spray drift. Nozzles with higher rated flows produce
coarser droplet spectra.
CONTROLLING DROPLET SIZE AIRCRAFT
• Nozzle Type - Solid stream, or other low drift nozzles produce the coarsest droplet spectra.
• Number of Nozzles - Using the minimum number of nozzles with the highest flow rate that provide
uniform coverage will produce a coarser droplet spectrum.
• Nozzle Orientation - Orienting nozzles in a manner that minimizes the effects of air shear will
produce the coarsest droplet spectra. For some nozzles such as solid stream, pointing the nozzles
straight back parallel to the airstream will produce a coarser droplet spectrum than other orientations.
• Pressure Selecting the pressure that produces the coarsest droplet spectrum for a particular nozzle
and airspeed reduces spray drift potential. For some nozzle types such as solid streams, lower
pressures can produce finer droplet spectra and increase drift potential.l
BOOM LENGTH (AIRCRAFT), AND APPLICATION HEIGHT
• Boom Length (aircraft) - Using shorter booms decreases drift potential. Boom lengths are
expressed as a percentage of an aircrafts wingspan or a helicopters rotor blade diameter. Shorter
boom length and proper positioning can minimize drift caused by wingtip or rotor vortices.
• Application Height (aircraft) - Applications made at the lowest height that are consistent with pest
control objectives and the safe operation of the aircraft will reduce the potential for spray drift.
• Application Height (ground) - Applications made at the lowest height consistent with pest control
objectives, and that allow the applicator to keep the boom level with the application site and minimize
bounce, will reduce the exposure of spray droplets to evaporation and wind, and reduce spray drift
potential.
WIND
Drift potential is lowest when applications are made in light to gentle sustained winds (2 -10 mph), which
are blowing in a constant direction. Many factors, including droplet size and equipment type also
determine drift potential at any given wind speed. AVOID GUSTY OR WINDLESS CONDITIONS.
TEMPERATURE AND HUMIDITY
Setting up equipment to produce larger droplets to compensate for droplet evaporation can reduce spray
drift potential. Droplet evaporation is most severe when conditions are both hot and dry.
SURFACE TEMPERATURE INVERSIONS
Drift potential is high during a surface temperature inversion. Surface inversions restrict vertical air mixing,
which may cause small suspended droplets to remain close to the ground and move laterally in a
concentrated cloud. Surface inversions are characterized by increasing temperature with altitude and are
common on nights with limited cloud cover and light to no wind. They begin to form as the sun sets and
often continue into the morning. Mist or fog may indicate the presence of an inversion in humid areas.
Inversions may also be identified by producing smoke and observing its behavior. Smoke that remains
close to the ground, or moves laterally in a concentrated cloud under low wind conditions indicates a
surface inversion. Smoke that moves upward and rapidly dissipates indicates good vertical air mixing.
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 15
SHIELDED SPRAYERS
Shielding the boom or individual nozzles can reduce the effects of wind. However, it is the responsibility
of the applicator to verify that the shields are minimizing drift potential, and not interfering with uniform
deposition of the product.
AIR ASSISTED (AIR BLAST) FIELD CROP SPRAYERS
Air assisted field crop sprayers carry droplets to the target via a downward directed air stream. Some may
reduce the potential for drift, but if a sprayer is unsuitable for the application and/or set up improperly,
high drift potential can result. It is the responsibility of the applicator to determine that a sprayer is suitable
for the intended application, that it is configured properly, and that drift potential has been minimized.
Note: Air assisted field sprayers can affect product performance by affecting spray coverage and canopy
penetration. Read the specific crop use and application equipment instructions to det ermine if an air
assisted field crop sprayer can be used.
SENSITIVE AREAS
Making applications when there is a sustained wind moving away from adjacent sensitive areas (e.g.,
residential areas, bodies of water, known habitat for threatened or endangered species, non-target crops)
is an effective way to minimize the effect of spray drift.
DRIFT CONTROL ADDITIVES
Using product compatible drift control additives can reduce drift potential. When a drift control additive is
used, read and carefully observe cautionary statements and all other information on the additives label. If
using an additive that increases viscosity, ensure that the nozzles and other application equipment will
function properly with a viscous spray solution. Preferred drift control additives have been certified by the
Council of Producers and Distributors of Agrotechnology.
NOTICE TO BUYER--Purchase of this material does not confer any rights under patents of countries
outside of the United States.
The DuPont Oval Logo, DuPont™, ZORVEC™ and EPICALTRIN™ are trademarks or registered
trademarks of E. I. du Pont de Nemours and Company.
SL - 2046 040417 08-14-17
Terms and Conditions of Use
If terms of the following Warranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies are not
acceptable, return unopened package at once to the seller for a full refund of purchase price paid. To the
extent permitted by law, use by the buyer or any other user constitutes acceptance of the terms under
Warranty Disclaimer, Inherent Risks of Use and Limitations of Remedies.
Warranty Disclaimer
Corteva Agriscience warrants that this product conforms to the chemical description on the label and is
reasonably fit for the purposes stated on the label when used in strict accordance with the directions,
subject to the inherent risks set forth below. To the extent permitted by law, Corteva Agriscience MAKES
NO OTHER EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE OR ANY OTHER EXPRESS OR IMPLIED WARRANTY.
Inherent Risks of Use
It is impossible to eliminate all risks associated with use of this product. Plant injury, lack of performance,
or other unintended consequences may result because of such factors as use of the product contrary to
label instructions (including conditions noted on the label, such as unfavorable temperatures, soil
conditions, etc.), abnormal conditions (such as excessive rainfall, drought, tornadoes, hurricanes),
presence of other materials, the manner of application or other factors, all of which are beyond the control
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 16
of Corteva Agriscience or the seller. Corteva Agriscience will not be responsible for losses or damages
resulting from the use of this product in any manner not specifically directed by Corteva Agriscience. To
the extent permitted by law, all such risks associated with non-directed use shall be assumed by buyer
and/or user.
Limitation of Remedies
To the extent permitted by law, the exclusive remedy for losses or damages resulting from this prod uct
(including claims based on contract, negligence, tort, strict liability, or other legal theories), shall be limited
to, at Corteva Agrisciences election, one of the following:
1. Refund of purchase price paid by buyer or user for product bought, or
2. Replacement of product used.
To the extent permitted by law, Corteva Agriscience shall not be liable for losses or damages resulting
from handling or use of this product unless Corteva Agriscience is promptly notified of such loss or
damage in writing. To the extent permitted by law, in no case shall Corteva Agriscience be liable for
consequential, incidental or special damages or losses.
The terms of the Warranty Disclaimer, Inherent Risks of Use, and Limitation of Remedies cannot be
varied by any written or verbal statements or agreements. No employee or sales agent of Corteva
Agriscience or the seller is authorized to vary or exceed the terms of the Warranty Disclaimer or this
Limitation of Remedies in any manner.
™® Trademarks of Corteva Agriscience and its affiliated companies
LIMITATION OF WARRANTY AND LIABILITY
NOTICE: Read this Limitation of Warranty and Liability before buying or using this Product. DuPont will
not be responsible for losses or damages resulting from the use of this product in any manner not
specifically directed by DuPont. User assumes all risks associated with such non-directed use. If the
Terms are not acceptable, return the product at once, unopened, and the purchase price will be refunded.
It is impossible to eliminate all risks associated with the use of this product. Such risks arise from weathe r
conditions, soil factors, off target movement, unconventional farming techniques, presence of other
materials, the manner of use or application, or other unknown factors, all of which are beyond the control
of DuPont. These risks can cause: ineffec- tiveness of the product, crop injury, or injury to non-target
crops or plants. WHEN YOU BUY OR USE THIS PRODUCT, YOU AGREE TO ACCEPT THESE RISKS.
DuPont warrants that this product conforms to the chemical description on the label thereof and is
reasonably fit for the purpose stated in the Directions for Use, subject to the inherent risks described
above, when used in accordance with the Directions for Use under normal conditions.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, DUPONT MAKES NO OTHER EXPRESS
OR IMPLIED WARRANTY OF FITNESS OR OF MERCHANTABILITY OR ANY OTHER EXPRESS OR
IMPLIED WARRANTY. TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, IN NO EVENT
SHALL DUPONT OR SELLER BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL
DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT. BUYER'S OR USER'S
BARGAINED-FOR EXPECTATION IS CROP PROTECTION. TO THE EXTENT CONSISTENT WITH
APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE EXCLUSIVE
LIABILITY OF DUPONT OR SELLER, FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR DAMAGES
(INCLUDING CLAIMS BASED ON BREACH OF WARRANTY OR CONTRACT, NEGLIGENCE, TORT
OR STRICT LIABILITY), WHETHER FROM FAILURE TO PERFORM OR INJURY TO CROPS OR
OTHER PLANTS, AND RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHAL L BE
THE RETURN OF THE PURCHASE PRICE OF THE PRODUCT, OR AT THE ELECTION OF DUPONT
Oxathiapiprolin / Zorvec Epicaltrin / MSTR / Notif With Edits / 10-20-22 Page 17
OR SELLER, THE REPLACEMENT OF THE PRODUCT.
To the extent consistent with applicable law that allows such requirement, DuPont or its Ag Retailer must
have prompt notice of any claim so that an immediate inspection of buyer's or user's growing crops can
be made. Buyer and all users shall promptly notify DuPont or a DuPont Ag Retailer of any claims,
whether based on contract, negligence, strict liability, other tort or otherwise, or be barred from any
remedy.
This Limitation of Warranty and Liability may not be amended by any oral or written agreement. [GW2]
®™ Trademarks of Dow AgroSciences, DuPont or Pioneer and their affiliated companies or respective owners
EPA accepted 08/14/17
For product information call: 1-888-6-DUPONT [1-888-638-7668]
Internet address: http://cropprotection.dupont.com/
© 2015-2017 E. I. du Pont de Nemours and Company, Chestnut Run Plaza, 974 Centre Road,
Wilmington, DE 19805 U.S.A.
All rights reserved.