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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 13453 + GLUFOSINATE BASF,UPL NA SPINACH (04-16A = LEAFY GREENS SUBGROUP) E/CS DATA ON-GOING (03G) Reasons for need: IT IS THE ONLY ALTERNATIVE TO GLYPHOSATE FOR BROAD SPECTRUM WEED CONTROL WITH LITTLE SOIL RESIDUAL; VERY LIMITED HERBICIDES THAT WORK IN SPINACH, TABLE BEET, AND CHARD IN WA Efficacy/Crop Safety (E/CS) Data Required: IN THE 2023 PERFORMANCE PROTOCOL, TESTING EFFECT OF PREPLANT BURNDOWN USE OF GLUFOSINATE (RELY) ON SPINACH, LETTUCE (13454), BROCCOLI (13368), CABBAGE (13369) AND MUSTARD GREENS (13370); BASED ON LOCAL PRACTICES, CROPS WILL BE DIRECT-SEEDED OR TRANSPLANTED; COMPARE ONE BROADCAST PREPLANT BURNDOWN APPLIC OF 2 RATES OF RELY (0.79 AND 1.59 LB AI/A , +3 OR 6 LB/A OF AMMONIUM SULFATE [AMS], RESPECTIVELY), IN AT LEAST 15 GPA; APPLY TRMTS 3, 7 AND 14 DAYS PRIOR TO DIRECT-SEEDING/TRANSPLANTING; WITHIN A DAY AFTER SEEDING/TRANSPLANTING APPLY 0.25-0.5 " OVERHEAD IRRIGATION; EVALUATE CROP INJURY, CROP VIGOR AND CROP STAND E/CS Research Comments: Comments: EPA GREEN 08/22; ECS DATA MUST BE ANALYZED PRIOR TO APPROVAL FOR RESIDUE STUDY: 3/1/23 JPB;EPA HOLD CAUTION:08/23 Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Dittmar, Dr. Peter 23-FLP11 Pena, Marco 20-AZ-DMP RECD 5288.pdf LIBERTY APPLIED BROADCAST TO CLAY SOIL AT 42 FL OZ/A (0.77 LB AI/A) ONE DAY PRIOR TO PLANTING. NO CROP INJURY OBSERVED 23 DAYS AFTER PLANTING. Pena, Marco 23-AZP01 RECD 5664.pdf 12/23 As part of a multi-crop screening trial, Rely herbicide was applied broadcast 14, 7, or 3 days preplant at 43 or 87 fl oz/a (0.79 or 1.59 lb ai/a) to seeded spinach in a clay soil. Glufosinate caused no crop injury, stand reduction or yield reduction. Robinson, Allison 23-OHP01 RECD 5685.pdf 01/24 As part of a multi-crop screening trial, Rely herbicide was applied broadcast 14, 6, or 3 days preplant at 43 or 87 fl oz/a (0.79 or 1.59 lb ai/a) to seeded ‘Bloomsdale’ spinach in a muck soil. Glufosinate caused no crop injury, stand reduction or yield reduction. Wang, Zheng 23-CAP24 RECD 5693.pdf 02/24 Trial not completed due to trial-wide germination issues. Culpepper, A. Stanley 23-GAP02 RECD 5716.pdf 04/24 Rely applied preplant broadcast at 43 or 87 fl oz/a (0.79 or 1.59 lb ai/a) three, 7, or 14 days prior to seeding ‘Banjo’ spinach in a loamy sand soil. No injury, stand loss, or reduction in crop vigor from glufosinate, regardless of rate or timing.