| Reduced Risk Status: |
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| IPM Compatibility: |
PER REQUESTOR: GOOD IPM FIT; USED AT A LOW RATE COMPARED TO OTHER POSTEMERGENCE HERBICIDES FOR BINDWEED CONTROL:08/18
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| Reasons for need: |
FIELD BINDWEED, HEDGEBINDWEED; CANADA THISTLE; BARNYARDGRASS; CRABGRASS; OTHER HERBICIDES ARE NOT AS EFFECTIVE AS QUINCLORAC FOR BINDWEED CONTROL
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| Requesting State(s): |
AL:Vinson, E ; MI:Zandstra, B ; NJ:Besancon, T ; OR:Moretti, M ; PA:Brunharo, C ;
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| PCR Use Pattern: |
USE QUINSTAR 4L; APPLY FOLIAR TO EMERGED WEEDS THAT ARE WELL-ESTABLISHED; APPLY 0.375 LB AI/A IN A BAND DIRECTED TO THE SOIL AT THE BASE OF TREES ON EACH SIDE OF THE ROW, 2 APPLIC 15 DAYS APART; 30-DAY PHI; IF NEEDED INCLUDE 1% COC
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| EPA Default Residue Trials: |
1 2-4 4 5 6 10-4
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| IR-4 Residue Trial Plan: |
1 2-3 5 6 10-3
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| Residue Protocol Use Pattern: |
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| Efficacy/Crop Safety (E/CS) Data Required: |
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| E/CS Research Comments: |
PERFORMANCE PROTOCOL FOR 2022 TRIALS ALSO COVERS THE NEEDS FOR PR# 12573/PLUM AND 12574/CHERRY TO COVER STONE FRUITS; EACH TRIAL WILL LAST TWO YEARS, WITH THE SAME TREATMENTS APPLIED TO THE SAME PLOTS EACH YEAR; TWO TRIALS WILL BE CONDUCTED ON EACH CROP (PEACH, PLUM, CHERRY); 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 DIRECTED SPRAYS TO BOTH SIDES AND ACROSS ROWS (SEE PROTOCOL FOR MORE DETAILED APPLIC REQUIREMENTS); EVALUATE CROP INJURY AND VIGOR, WEED CONTROL EFFICACY AND CROP YIELD; 2023 PERFORMANCE PROTOCOL CONTINUES TRIALS ON THE SAME PLOTS USED IN 2022 TRIALS
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| Label Use Pattern Submitted To EPA: |
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| EPA PIF Status: |
GREEN:09/19, 08/20, 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: |
JAPAN AND CHINA ARE KEY EXPORT MARKETS; BASF NO LONGER SUPPORTS THIS AI; ALBAUGH SUPPORTS, RESIDUE ONLY, BUT HAS NO PLAN TO REGISTER IN CA:08/18; EPA GREEN:09/19 & 08/20; MFG CHANGED TO POTENTIAL AT FUW (NEED MORE PERFORMANCE DATA BEFORE APPROVAL FOR RESIDUE WORK), AND CONFIRMED THEY WILL SUPPORT REGISTRATION/USE IN CA:09/20; CATEGORY CHANGED FROM POTENTIAL; E/CS DATA BEFORE APPROVAL FOR RESIDUE STUDY TO E/CS DATA ONGOING:12/21; STATUS UPDATED TO RESEARCHABLE, E/CS ON-GOING; RESIDUE DATA NEEDED:10/22; EPA GREEN: 08/23; The performance protocol covers additional PR#s: 12573 Quinclorac/Plum & 12574 Quinclorac/Cherry 05/24/drs; Albaugh status update from e/cs data ongoing to Researchable, Only Residue Data Needed:07/24/sb
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| International Status: |
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| Archive Location: |
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| QA Archive: |
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