OxyStar® 2E is a contact herbicide that provides long-lasting preemergence and post emergence weed control in a variety of labeled crops making it ideal for residual herbicide programs.

Functions: Herbicide

HRAC/WSSA Group: 14

Application Technique: Aerial Application, Chemigation, Ground Soil Applied, Post-Emergence, Pre-Emergence

Formulation Type: Concentrate Solutions

Technical Data Sheet
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Identification & Functionality

Chemical Family
HRAC/WSSA Group
Agrochemical Functions
Technologies
Composition

ACTIVE INGREDIENT

Oxyfluarfen: 2-chlora-1-(3-ethoxy-4-nitrophenoxy)4-(trifluoromethyl) - 22.3%

OTHER INGREDIENTS - 17.7%

Contains 2 pounds active ingredient per gallon.

Contains petroleum distillates

Features & Benefits

Product Features

• OxyStar® 2E provides long-lasting control by preventing the growth of weeds and eliminating weeds after sprouting.

• Applications of OxyStar® 2E can be made by ground, air or through chemigation systems.

• OxyStar® 2E may be applied with other EPA approved herbicides to expand weed control in labeled crops.

Product Information

ACTIVE INGREDIENT: Oxyfluorfen

HERBICIDE GROUP: 14

ACTIVE INGREDIENT PER GALLON: 2.0 lbs.

MODE OF ACTION: Inhibition of protoporphyrinogen oxidase (PPO)

PACKAGING: 2x2.5’s and 30 gal. drums

Applications & Uses

Product Use Rate

GRAPES (Non-Dormant Application)(California Only)

OxyStar® 2E may be applied as a directed spray or, for supplemental preemergence weed control, through low-volume sprinkler (micro sprinkler) or drip irrigation systems for control or suppression of listed broadleaf weeds in non-dormant grapes (raisin and wine grapes only). OxyStar® 2E may also be applied to all grapes (raisin, table, and wine) as a dormant season application. Refer to Tree fruit/Nut/Vine Crops (Dormant Application) section on the label for use directions for dormant season application to grapes.

WEED CONTROL RATE (PT/ACRE) SPECIFIC USE DIRECTIONS
Preemergence 2 OxyStar® 2E may be applied preemergence or postemergence to weeds either as a directed spray in a minimum spray volume of 20 gallons per acre or through low-volume sprinkler (micro sprinkler) or drip irrigation systems. Repeat applications may be required. Applications may be made from completion of bloom up to 14 days before to harvest. When applied as a postemergence directed spray, add 1 quart 80% active nonionic surfactant cleared for application to growing crops per 100 gallons of spray. Direct sprays to the soil and the base of vines.
Postemergence 1-2

TANK MIXING

When applied as a directed postemergence spray using ground equipment, OxyStar® 2E may be applied in tank mix with paraquat or glyphosate in a minimum spray volume of 10 gallons per acre. Refer to Mixing Directions section of the label for Tank Mixing Precautions. Follow applicable use directions, precautions, and limitations on the respective product labels. In interpreting the labels of tank mixed products, the most restrictive label limitations must apply. It is the pesticide user's responsibility to ensure that all products are registered for intended use. Read and follow the applicable restrictions and limitations and directions for use on all product labels involved in tank mixing. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.

CHEMIGATION

Follow chemigation instructions in Product Use Information section of the label. Low Volume Sprinkler (Microsprinkler) and Drip (Trickle) Irrigation: Apply only through low-volume sprinkler or drip systems designed to uniformly distribute irrigation water beneath the canopy. Meter OxyStar® 2E at a continuous rate during the middle 1/3 of the irrigation period and discontinue application during the final 1/3 of the irrigation period to ensure proper flushing of the irrigation system. Use of OxyStar® 2E through low-volume sprinklers or drip emitters helps to reduce the "ring effect" of weed escapes in areas around sprinklers or emitters where previously applied broadcast or directed treatments begin to break down.

PRECAUTIONS

Crop Tolerance: The use of OxyStar® 2E may result in varying degrees of injury to non-dormant grapes. Grape foliage will typically exhibit injury symptoms from direct or indirect (spray drift, soil contact) exposure. This injury may result in necrosis, reddening, cupping or crinkling of grape leaves. The grape plant will continue to grow normally. Grape leaves that are immature or expanding at the time of contact with OxyStar® 2E are the most susceptible to foliage injury. Grapes may exhibit some small blemishes (spots or flicks) on the fruit. OxyStar® 2E is phytotoxic to plant foliage. Avoid drift to all other crops and nontarget areas. Do not apply when weather conditions favor drift.

CROP-SPECIFIC USE RESTRICTIONS

The total amount of OxyStar® 2E applied during one year cannot exceed 6 pints (1.5 lbs. of active) per acre as a result of multiple applications in any given area (broadcast, banded, or within the wetted area of the low-volume sprinkler or drip irrigation system). Do not make more than 4 applications per acre per year. Do not make follow up applications within 8 weeks of previous application Do not apply within 14 days of harvest. Do not initiate application of OxyStar® 2E in non-dormant grapes until the completion of the bloom period. Do not apply to grapes established less than 3 years unless vines are either on a trellis wire a minimum of 3 feet above the soil surface or protected by grow tubes. OxyStar® 2E must be applied only by ground application equipment of through low-volume sprinkler (micro sprinkler) or drip (trickle) irrigation systems. Apply OxyStar® 2E as a non-dormant application to wine grapes or raisin grapes only.

SUCKER CONTROL IN NON-DORMANT GRAPES

(Washington and Oregon Only) (Grapes for Wine and Processing Only)

APPLICATION TIMING FOR SUCKER CONTROL RATE (PT/ACRE)  SPECIFIC USE DIRECTIONS
Grape suckers less than 12 inches in length. 1–2 Apply OxyStar® 2E in a three-foot band directed towards to newly emerging suckers at the base of the grapevine. The highest rate and/or a second application may be required to achieve an acceptable level of control/ suppression of grape suckers. Avoid spray contact on flowers, grape clusters, or fruit. Use mounted nozzles to deliver the spray solution. Thorough spray coverage of sucker growth is essential for optimal activity. Use a spray volume of 50 or more gallons per acre (broadcast basis).

TANK MIXING

For enhanced postemergence sucker activity, a tank mixture of OxyStar® 2E with either glufosinate (Rely Herbicide) or paraquat can be used. Apply at the specified rates and growth stages in a manner describe on the respective labels. Refer to Mixing Directions section of the label for Tank Mixing Precautions. Follow applicable use directions, precautions, and limitations on the respective product labels. In interpreting the labels of tank mixed products, the most restrictive label limitations must apply. It is the pesticide user's responsibility to ensure that all products are registered for intended use. Read and follow the applicable restrictions and limitations and directions for use on all product labels involved in tank mixing. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.

PRECAUTIONS

The use of OxyStar® 2E may result in varying degrees of injury to non-dormant grapes. Grape foliage will typically exhibit injury symptoms from direct or indirect (spray drift or soil contact) exposure. This injury may result in necrosis, reddening, cupping or crinkling of grape leaves. The grape plant will continue to grow normally. Leaves that are immature or expanding at the time of contact with OxyStar® 2E are the most susceptible to injury. Grape fruit may exhibit some small blemishes (spots or flecks) on the fruit.

CROP-SPECIFIC USE RESTRICTIONS

The total amount of OxyStar® 2E applied during one crop year (dormant and non-dormant) cannot exceed 6 pints (1.5 lbs. of active) per acre as a result of multiple applications in any give area (broadcast or banded). Do not make more than 4 applications per acre per year. Do not make follow up applications within 8 weeks of previous application OxyStar® 2E must be applied only by ground application equipment. Apply OxyStar® 2E as a non-dormant application for sucker control only to wine or processed grapes. Do not apply OxyStar® 2E within 60 days of harvest.

TREE FRUIT & NUT CROPS (Dormant Application)

Almond, Apple, Apricot, Avocado, Beechnut, Brazil Nut, Butternut, Cashew, Cherry, Chestnut, Chinquapin, Crab Apple, Date, Feijoa, Fig, Filbert, Grapes, Hickory Nut, Kiwi, Loquat, Macadamia Nut, Mayhaws, Nectarine, Olives, Peach, Pear, Pecan, Persimmon, Pistachio, Plum, Pomegranates, Prune, Quince, and Walnut

WEED CONTROL RATE (PT/ACRE) SPECIFIC USE DIRECTIONS
PREEMERGENCE Apply OxyStar® 2E a minimum of 20 gallons of water per acre. Use higher spray volumes to ensure thorough coverage in high densities of emerged weeds or heavy trash. Sprays should be directed to the soil and the base of dormant trees or vines. In California, OxyStar® 2E may be applied as an over-the-top or directed spray to dormant nonbearing grape plantings. The use of a low-pressure sprayer is suggested. Do not apply over-the-top to grape plantings that are under stress due to drought, flooding, excessive fertilizer or soil salts, storage conditions, wind injury, hail, injury from previously applied pesticides, or injury due to insects, nematodes, or diseases, as severe crop injury may result.
Broadcast Application 5–6
Banded Application 5–8
POSTEMERGENCE Apply in a spray volume of 40 or more gallons per acre. For optimum control, apply when weeds are at seedling stage of growth. The lower rate in the rate range (2 pints per acre) is required for the control of susceptible seedling weeds in the early postemergence stage up to the 4-leaf stage. Higher rates (up to 6 pints per acre) may be used for weeds up to the 6-leaf stage. Applications to weeds beyond the 6-leaf stage may result in partial control.
Broadcast Application 2–6
Banded Application 2–8

TANK MIXING

Refer to Mixing Directions section for Tank Mixing Precautions on the product label. Follow applicable use directions, precautions, and limitations on the respective product labels. In interpreting the labels of tank mixed products, the most restrictive label limitations must apply. See labels of tank mix partners to determine suitability and use rates for various crops. Postemergence: For broader spectrum postemergence control of listed grass and broadleaf weeds, OxyStar® 2E may be applied in tank mix with paraquat or glyphosate. These herbicides may also be added to preemergence tank mixes for enhanced control of existing weeds. Preemergence: For broad-spectrum preemergence control of susceptible grass and broadleaf weeds in listed tree fruit, nut or vine plantings, OxyStar® 2E may be applied in tank mix with napropamide.

CHEMIGATION (ALL STATES)

For dormant season application using sprinkler (low-volume (micro sprinkler), drip (trickle), and flood (basin) irrigation systems, apply OxyStar® 2E at the specified rate per acre. Follow applicable directions in the Chemigation section of the product label when making applications using irrigation systems.

PRECAUTIONS

• OxyStar® 2E or any of the combinations specified on this label must be applied to only healthy growing trees or vines.

• Avoid direct plant contact. Direct spray toward the base of tree or vines unless specific use specifications allow over-the-top application.

CROP-SPECIFIC USE RESTRICTIONS

• In all states, unless otherwise specified, do not apply OxyStar® 2E during the period between bud swell and completion of final harvest or when fruit/nuts are present. OxyStar® 2E may be applied upon completion of final harvest.

• In Arizona and California, OxyStar® 2E may be applied during the period following completion of final harvest up to February 15 (February 1st in the Coachella Valley, California). Applications made after these calendar dates, but prior to bud swell, may result in significant crop injury and are the responsibility of the user.

• For banded applications, up to 8 pints (2.0 lbs. of active) per acre of OxyStar® 2E per year may be applied within the treated band.

• Do not apply more than a maximum of 6 pints (1.5 lbs. of active) per acre per year on a broadcast basis.

• Do not apply more than 3 applications per acre per year.

• Do not make follow up applications within 8 weeks of previous application

• Do not apply to grapes or kiwi established less than 3 years unless vines are on a trellis wire a minimum of 3 feet above the soil surface.

• Do not apply to grapes or kiwi that are not staked or trellised unless vines are free standing.

PISTACHIOS, WALNUTS, ALMONDS (CALIFORNIA ONLY)(Non-Dormant Application)

WEED CONTROL RATE (PT/ACRE) SPECIFIC USE DIRECTIONS
Preemergence 5–6 Preemergence: For residual weed control of listed weeds
Postemergence 1–2 Postemergence (Suppression): Apply to seedling weeds less than 4 inches in height. Repeat applications may be required.
2–6 Postemergence (Cleanup): Contact (postemergence) control for cleanup sprays and preharvest applications. Apply to seedling weeds less than 4 inches in height. Applications to weed seedlings beyond the 4-inch stage may result in partial control.

TANK MIXING

For broader spectrum grass and broadleaf weed control in tree row middles, OxyStar® 2E may be tank mixed with either paraquat or glyphosate. Refer to Mixing Directions section for Tank Mixing Precautions on the product label. Follow applicable use directions, precautions, and limitations on the respective product labels. In interpreting the labels of tank mixed products, the most restrictive label limitations must apply.

CHEMIGATION

Follow chemigation instructions in Product Use Information section of the label.

Flood (Basin) Irrigation: For flood (basin) irrigation systems, meter continuously into the water during the entire irrigation period. Best weed control results are obtained when a uniform distribution and flow of irrigation water is maintained over level land. Irrigation water treated with OxyStar® 2E must be contained on the treated area until the water is absorbed by the soil.

Low Volume Sprinkler (Microsprinkler) and Drip (Trickle) Irrigation: Apply only through low-volume sprinkler or drip systems designed to uniformly distribute irrigation water beneath the tree canopy. Applications should be made prior to weed emergence; otherwise postemergence activity may be inconsistent due to uneven coverage. Meter OxyStar® 2E at a continuous rate during the middle 1/3 of the irrigation period and discontinue application during the final 1/3 of the irrigation period to ensure proper flushing of the irrigation system. Use of OxyStar® 2E through low-volume sprinklers or drip emitters helps to reduce the "ring effect" of weed escapes in areas around sprinklers or emitters where previously applied broadcast or directed treatments begin to break down.

PRECAUTIONS

• Direct spray toward the base of trees. Avoid direct contact with foliage or nuts. OxyStar® 2E must be applied only to healthy growing trees

CROP-SPECIFIC USE RESTRICTIONS

• When applied as a non-dormant treatment, OxyStar® 2E can only be applied to pistachio plantings between May and 7 days prior to harvest.

• When applied as a non-dormant treatment, OxyStar® 2E can only be applied to almond plantings between April 1 and September 30 and to walnut plantings between May 1 and September 30.

• Do not apply OxyStar® 2E within 7 days of harvest of pistachios.

• Do not apply OxyStar® 2E within 30 days of harvest of almonds.

• Do not apply OxyStar® 2E within 7 days of harvest of walnuts.

• Do not apply more than 6 pints (1.5 lbs. of active) of OxyStar® 2E per acre during the non-dormant period. • Do not make more than 4 applications per acre per year.

• Do not make follow up applications within 8 weeks of previous application

Weed Control

KEY WEEDS CONTROLLED OR SUPPRESSED

PREEMERGENCE

Burclover Cheeseweed, malva Fiddleneck, coast Groundsel, common Henbit Knotweed, prostrate Lambsquarters, common Minerslettuce Mustard, black Nettle, burning Nightshade, black Pigweed, redroot Purslane, common Redmaids Rocket, London Sowthistle, annual

POSTEMERGENCE

Cheeseweed, malva Fiddleneck, coast Groundsel, common Henbit Minerslettuce Morningglory species, annual Mustard, black Nettle, burning Nightshade, black Pigweed, redroot Purslane, common Redmaids Rocket, London Sowthistle, annual

KEY WEEDS CONTROLLED (Arizona and California)

PREEMERGENCE

Burclover Cheeseweed (malva) Fiddleneck, coast Filaree, broadleaf Filaree, redstem Filaree, whitestem Groundsel, common Henbit Knotweed, prostrate Lambsquarter, common Lettuce, prickly Pigweed, redroot Purslane, common Redmaids Rocket, london Shepherdspurse Sowthistle, annual

POSTEMERGENCE

Cheeseweed (malva) Fiddleneck, coast Filaree, broadleaf † Filaree, redstem† Filaree, whitestem† Groundsel, common Henbit Minerslettuce Nettle, burning Pigweed, redroot Redmaids Shepherdspurse Sowthistle, annual

†OxyStar® 2E at the 6-pint rate will provide control of filaree not exceeding the 4-inch stage. Applications to filaree beyond the 4-inch stage may result in partial control

KEY WEEDS CONTROLLED (All Other States Except Arizona and California)

PREEMERGENCE

Camphorweed Cudweed, narrowleaf Eveningprimrose, cutleaf† Groundcherry, cutleaf Jimsonweed Lambsquarters, common Nightshade, american black Nightshade, black Pepperweed, virginia Pigweed, redroot Poinsettia, wild Sida, prickly Smartweed, pennsylvania Sowthistle, annual Spurge, prostrate Spurge, spotted Velvetleaf

POSTEMERGENCE

Balsamapple Cocklebur, common Cudweed, narrowleaf †† Eveningprimrose, cutleaf ††† Groundcherry, cutleaf Groundcherry, wright Jimsonweed Lambsquarters, common Morningglory, annual Nightshade, american black Nightshade, black Pepperweed, virginia Pigweed, redroot Poinsettia, wild Purslane, common Sesbania, hemp Shepherdspurse Sida, prickly (teaweed) Smartweed, pennsylvania Sowthistle, annual Velvetleaf

† Highest rate and/or multiple applications may be required for acceptable control.

†† Maximum 0.5-inch diameter.

††† Highest rate and/or multiple applications may be required for acceptable control.

 

Directions for use

It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Read all Directions for Use carefully before applying. Do not apply this product in a way that will contact workers or other persons, either directly or through arift. 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.

Properties

Formulation Type
Physical Form

Safety & Health

Precautionary Statements

Causes Substantial But Temporary Eye Injury. Causes Skin Irritation. Harmful If Swallowed Or Absorbed Through The Skin. Prolonged Or Frequently Repeated Skin Contact May Cause Allergic Reactions In Some Individuals. Do not get in eyes, on skin or on clothing. Wash thoroughly with soap and water after handling. Remove contaminated clothing and wash clothing before reuse.

Personal Protective Eqiupment

Mixers, loaders and applicators using engineering controls (see engineering controls requirements below), must wear:

  • Long-sleeved shirt and long pants
  • Shoes plus socks
  • Chemical-resistant gloves when mixing and loading
  • Chemical-resistant apron when mixing and loading

All other mixers, loaders, applicators and other handlers must wear:

  • Coveralls over long-sleeved shirt and long pants
  • Chemical-resistant footwear plus socks
  • Chemical-resistant gloves
  • Chemical-resistant headgear when exposed overhead
  • Chemical-resistant apron when exposed to the concentrate
  • Goggles or face shield

Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this product’s concentrate. Do not reuse them. Follow manufacturer’s instructions for cleaning/ maintaining PPE. If no such instructions for washables exist, use detergent and hot water. Keep and wash PPE separately from other laundry. Pilots must use an enclosed cockpit in a manner that meets the requirement listed in the Worker Protection Stand (WPS) for agricultural pesticides [40 CFR 170.240(d\6)]. When handlers use closed systems, enclosed cabs or aircraft in a manner that meets the requirements listed in the Worker Protection Standards (WPS) for agricultural pesticides [40 CFR 170.240(q) (4-6)], the handler PPE requirements may be reduced or modified as specified in the WPS.

User Safety Recommendations

Users should:

  1. Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet.
  2. Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing.
  3. Remove PPE immediately after hancling 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 and wildlife. Do not apply directly to water or areas where surface water is present or to intertidal areas below the mean high water mark. Runoff from treated areas may be hazardous to aquatic organisms in neighboring areas. See Directions for Use for additional restrictions. Do not contaminate water when disposing of equipment wash water.

Storage & Handling

Storage and Disposal

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

PESTICIDE STORAGE: Store above 40 F.

PESTICIDE DISPOSAL: Pesticide Wastes are toxic. Improper disposal of excess pesticide spray mixture or rinsate is a violation of Federal Law. If these wastes cannot be disposed of by use according to label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste representative at the nearest EPA Regional Office for guidance.