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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 13719 H ISOCYCLOSERAM (ISM-555) SYNGEN CLOVER (SEED CROP) (18 = NONGRASS ANIMAL FEEDS GROUP) POTENTIAL: E/CS DATA BEFORE APPROVAL FOR RESIDUE STUDY (02) Reasons for need: clover seed weevil; Insecticide resistance and field-level control failures are common in white clover seed, which has been controlled with bifenthrin. The other alternative, malathion, has substantial bee safety concerns and resistance development concerns:08/23 Efficacy/Crop Safety (E/CS) Data Required: E/CS Research Comments: Comments: Mfg supports as "Potential: E/CS data before approval for Residue:09/23 Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Kaur, Navneet 23-OR-DMP RECD 5675.pdf ALTHOUGH NOT STATISTICALLY DIFFERENT FROM UTR, ISOCYCLOSERAM (PLINAZOLIN TECHNOLOGY) APPLIED ONCE IN PRE-BLOOM AND ONCE IN FULL-BLOOM AT 2 FL OZ/A AS A FOLIAR SPRAY REDUCED THE ABUNDANCE OF WHITE CLOVER SEED WEEVILS (ADULTS AND LARVAE). Kaur, Navneet 24-OR-DMP RECD 5841.pdf 10/24 Plinazolin Technology (isocycloseram) applied once in pre-bloom at first larval detection as a broadcast foliar spray at 2 fl oz/A significantly reduced the overall adult abundance of clover seed weevil compared to UTR. Similar to the commercial standard Malathion 8 Aquamul (malathion) applied at 1.25 pts/A. Yield was not affected by any treatments. Phytotoxicity was not observed.