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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 10241 + GLUFOSINATE BASF,UPL NA PASSIONFRUIT (24E = TROPICAL AND SUBTROPICAL, VINE, INEDIBLE PEEL SUBGROUP) MFG WILL NOT SUPPORT (11) Reasons for need: PARTHENIUM HYSTEROPHORUS 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 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 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; due to severe plant defoliation and decay after a series of applications, BASF has requested status update from E/CS Data On-Going to Mfg Will Not Support:10/24/sb; Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Crane, Dr. Jonathan H. 23-FLP12 NA Trial not completed after manufacturer dropped support for the project 09/25/ds Crane, Dr. Jonathan H. 12-FL-DMP RECD 4462.pdf 05/19 RELY 280 AT 1.75 LB AI/A ALONE OR WITH CHATEAU AT 2, 3 AND 6 OZ AI/A POST; INEFFECTIVE ON PARTHENIUM SPP. WHEN APPLIED ALONE IN AN AVOCADO TRIAL; BEST CONTROL WHEN APPLIED WITH CHATEAU. Reddy, Krishna N. 07-MS-DMP RECD 4463.pdf 05/19 TWO FIELD TRIALS IN 2005 AND 2006. RELY 280 AT 0.35 LB AI/A APPLIED POST AT EITHER ROSETTE OR BOLTED STAGE OF PARTHENIUM IN A NON-CROP AREA; GOOD CONTROL APPLIED AT ANY STAGE; EQUAL TO GLYPHOSATE. Singh, Samunder 04-**-DMP RECD 4464.pdf 05/19 INDIA - TWO FIELD TRIALS IN 2000 AND 2001. 0.75 AND 1.5 KG AI/A APPLIED POST AT ACTIVE GROWTH STAGE (90-100 CM HT) OF PARTHENIUM IN A NON-CROP AREA; 75-80% CONTROL AT THE HIGH RATE VS. 98% FOR GLYPHOSATE. Robles Vazquez, W. 23-PRP02 RECD 5844.pdf 11/24 Rely 280 banded sequentially along trellised ‘Purple’ passion fruit at 164 or 246 fl oz/a (3.0 or 4.5 lb ai/a). Passion fruit was established May 2023 in a Daguey clay. Four applications of each treatment were made, approximately four months apart, beginning in Sept 2023, each including ammonium sulfate at 3 lb/a. Excellent weed control from both rates 14 days after application (DAA) and continuing through 60 DAA. No crop injury was documented from either rate, but after the second application timing, foliage loss was noticed and continued to worsen through the remainder of the trial. At trial termination, passionfruit trunk circumference at the soil surface was significantly reduced by both rates of glufosinate, but difference were only 4mm or less. Robles Vazquez, W. 23-PRP11 RECD 5886.pdf 02/25 Rely 280 banded sequentially along trellised ‘Colombiana’ passion fruit at 164 or 246 fl oz/a (3.0 or 4.5 lb ai/a). Passion fruit was established May 2023 in a Toa silty clay loam. Four applications of each treatment were made, approximately four months apart, beginning in Sept 2023, each including ammonium sulfate at 3 lb/a. Excellent weed control from both rates 14 days after application (DAA) and continuing through 60 DAA. No crop injury was documented from either rate, but after the second application timing, foliage loss was noticed and continued to worsen through the remainder of the trial. At trial termination, passionfruit trunk circumference at the soil surface was not significantly reduced by either rate of glufosinate.