Reasons for need: |
PARTHENIUM HYSTEROPHORUS
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Efficacy/Crop Safety (E/CS) Data Required: |
NEED CROP SAFETY DATA AT EXAGGERATED RATES; NO EFFICACY DATA NEEDED:08/19; MFG CONFIRMED (IN 06/20) NEED FOR THE FOLLOWING CROP SAFETY RESEARCH: 3-4 TRIALS IN FL (AND PR, IF GROWN THERE); WILL ASSUME ONE PREDOMINANT SOIL TYPE/LEVEL OF ORGANIC MATTER WHERE GROWN; IF SOIL TYPE/% ORGANIC MATTER VARY IN PRODUCTION AREA, THEN NEED 1 TRIAL USING YOUNG, NON-BEARING (BUT ESTABLISHED FOR AT LEAST 3 MONTHS) TREES PER SOIL; MAKE 6 SEQUENTIAL APPLIC AT 0, 2X AND 4X RATES, APPLIED ABOUT 4 MONTHS APART; MFG REQUEST SEEDLINGS TO CONDUCT 'LEVEL OF TOLERANCE' WORK IN THE GH
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E/CS Research Comments: |
IN THE PERFORMANCE PROTOCOL FOR 2023 TRIALS: EVALUATING PERFORMANCE OF GLUFOSINATE FOR WEED CONTROL IN PASSIONFRUIT, WITH 2 OF 3 TRIALS CONDUCTED ON NEWLY ESTABLISHED VINES (AT LEAST 3 MONTHS OLD); A COARSE TEXTURED SOIL IS RECOMMENDED FOR EACH TRIAL, IF POSSIBLE; TESTING 2 RATES OF RELY 280 (2.34 LB AI/GAL) (RATES OF 3.08 AND 4.5 LB AI/A) COMPARED WITH A WEED-FREE UNTREATED; MAKE 6 BANDED APPLIC OF EACH TREATMENT, IN >20 GPA, 4-MONTH INTERVALS, WITH LAST APPLIC AT LEAST 14 DAYS BEFORE 1ST FRUIT HARVEST; APPLY BANDED ON EACH SIDE OF THE CROP ROW AND BETWEEN PLANTS, OUT TO A MINIMUM 3 FT ON EACH SIDE OF THE CROP ROW OR BEYOND THE CANOPY DRIP LINE, WHICHEVER IS GREATER; EVALUATE CROP SAFETY AND TREE TRUNK CIRCUMFERENCE AT THE SOIL LINE; YIELD AND WEED CONTROL DATA ARE NOT REQUIRED
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Comments: |
ORIGINAL REQUEST REC'D 8/25/2008; MFG NO - THERE ARE RISK CUP & GROUND WATER CONCERNS:08/08; MFG WILL REVISIT AFTER RE-REG REVIEW IS COMPLETED BY EPA:05/16; MFG SUPPORTS (RESIDUE + E/CS DATA); PASSIONFRUIT IS REP CROP FOR NEW SUBGROUP 24E:08/16; EPA CAUTION:09/16; EPA CAUTION:08/17; EPA CAUTION:09/18; MFG CHANGED TO POTENTIAL - NO CROP SAFETY DATA IS AVAILABLE AT EXAGGERATED RATES:08/19; EPA GREEN:09/19; ECS DATA NEEDED PRIOR TO RESIDUE, ECS DATA STARTED 02/23:JPB, 02/23;; EPA HOLD CAUTION:08/23
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