| Reduced Risk Status: |
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| IPM Compatibility: |
PER REQUESTER: GOOD IPM FIT; QUINCLORAC EFFECTS A LIMITED NUMBER OF WEEDS, SO IT MAY BE USED SAFELY IN MANY CROPS:08/18; PER 2020 NER NOMINATION COMMENT: THIS HERBICIDE IS MORE SPECIFIC AND SAFER TO USE THAN GLYPHOSATE:08/20; VERY GOOD FIT: HERBICIDE SPECIFICITY CAN FIT WELL INTO IPM WEED MANAGEMENT STRATEGIES.: WSR; GOOD FIT: SEE PREV COMMENTS: NER
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| Reasons for need: |
FIELD BINDWEED, HEDGE BINDWEED, CANADA THISTLE, CRABGRASS, BARNYARDGRASS, FOXTAIL; OTHER POST HERBICIDES ARE NOT EFFECTIVE AGAINST THESE WEEDS; PER NJ ME-TOO REQUEST, OPTIONS FOR CONTROLLING CLOVER AND BINDWEED IN GRAPE ARE NON-EXISTENT, AND QUINCLORAC WOULD BE A GOOD FIT FOR CONTROLLING THESE INCREASINGLY TROUBLESOME WEEDS; PER NY ME-TOO REQUEST: CONTROL OF PERENNIAL VINING WEEDS LIKE BINDWEED IS DIFFICULT DUE TO LIMITED HERBICIDE OPTIONS
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| Requesting State(s): |
MI:Zandstra, B ; NJ:Besancon, T ; NY:Sosnoskie, L ; OH:Robinson, A ; OR:Moretti, M ; PA:Brunharo, C ;
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| PCR Use Pattern: |
USE THE QUINSTAR PRODUCT; MAKE 2 APPLIC OF 0.375 LB AI/A, POST DIRECTED TO WEEDS AT BASE OF GRAPE PLANTS; 30-DAY INTERVAL, 30-DAY PHI; APPLY IN A BAND AS A DIRECTED SPRAY, AVOIDING CONTACT WITH CROP LEAVES
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| EPA Default Residue Trials: |
1-2 10-8 11/12-2
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| IR-4 Residue Trial Plan: |
1-2 10-5 11/12-2, RAISINS & JUICE ARE NEEDED, NO DECLINE. 2025 - 3 RED A (2 NEED & 1 BACKUP) TRIAL
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| Residue Protocol Use Pattern: |
USE THE QUINSTAR 4L PRODUCT (3.8 LB AI/GAL OF QUINCLORAC ACTIVE INGREDIENT); MAKE 2 APPLIC OF 0.375 LB AI/A IN 10-40 GPA, 30-DAY INTERVAL, 30-DAY PHI; EACH APPLIC SHOULD BE MADE BANDED TO THE GROUND OF THE GRAPE VINEYARD ON EACH SIDE OF THE VINE ROW, MINIMUM SWATH WIDTH EXTENDING FROM VINES OUT 3 FT ON EACH SIDE OF THE VINES, WITH THE SPRAY PATTERN CROSSING THE BASE OF THE PLANTS, NOT EXCEEDING 12 IN UP THE VINES; INCLUDE A 5X RATE TRT (1.875 LB AI/A) IN THE PROCESSING TRIAL; ALL APPLIC SHALL INCLUDE A CROP OIL CONCENTRATE, AMS OR METHYLATED SEED OIL ADJUVANT AT A LABEL RATE
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| Efficacy/Crop Safety (E/CS) Data Required: |
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| E/CS Research Comments: |
IN THE PERFORMANCE PROTOCOLS FOR 2021/2022 TRIALS, EACH TRIAL LASTS TWO YEARS, WITH THE SAME TREATMENTS APPLIED TO THE SAME PLOTS EACH YEAR; TESTING 2 RATES OF QUINSTAR 4L (0.375 AND 0.75 LB AI/A), IN AT LEAST 10 GPA, COMBINED WITH A CROP OIL CONCENTRATE (COC) AT 2 PT/A OR A METHYLATED SEED OIL (MSO) AT 1.5 PT/A; TREATMENTS WILL BE APPLIED AS BANDED SPRAYS TO THE VINEYARD FLOOR (SEE PROTOCOL FOR MORE DETAILED APPLIC REQUIREMENTS); EVALUATE CROP INJURY AND VIGOR, WEED CONTROL EFFICACY AND CROP YIELD
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| Label Use Pattern Submitted To EPA: |
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| EPA PIF Status: |
GREEN:09/19, 08/23
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| EPA Status: |
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| EPA PRIA Date: |
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| MRID: |
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| Comments: |
NO EXPORT MARKETS NOTED:08/18; EPA GREEN:09/19; MFG CHANGED FROM UNDER EVAL TO POTENTIAL AT FUW:09/24/19; PROMISING PERFORMANCE DATA OBSERVED FROM YEAR 1 AND CURRENTLY WE ARE IN YEAR 2 OF THE STUDY:08/22; STATUS UPDATED TO RESEARCHABLE, E/CS ON-GOING; RESIDUE DATA NEEDED:10/22; EPA GREEN: 08/23; mfg updated status at the 2023 FUW from researchable, e/cs on-going, residue data needed, to Researchable, only Residue Data Needed:09/23/sb; this study rec'd a "B" priority at the 2023 FUW and was upgraded to an "A" as a result of studies needed to replace others removed for ChecmSACs:01/24/sb; Status updated to complete w ongoing trials 05/24/drs;
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| International Status: |
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| Archive Location: |
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| QA Archive: |
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