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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 13493 + FLUXAPYROXAD + PYRACLOSTROBIN BASF ASPARAGUS (FERN) (22A = STALK AND STEM VEGETABLE SUBGROUP) E/CS DATA ON-GOING (03G) Reasons for need: STEMPHYLIUM VESICARIUM; CURRENTLY REGISTERED PRODUCTS INCLUDE PROTECTANTS AND STROBILURINS. NEW, MORE EFFECTIVE ACTIVES ARE NEEDED; Efficacy/Crop Safety (E/CS) Data Required: E/CS Research Comments: PR# 13489 (MIRAVIS PRIME [PYDIFLUMETOFEN + FLUDIOXONIL]) E/CS WORK IS COVERED UNDER THIS PROJECT; PER 2023 PERFORMANCE PROTOCOL: TESTING MERIVON XEMIUM (FLUXAPYROXAD 21.26% + PYRACLOSTROBIN 21.26%) AND MIRAVIS PRIME (PYDIFLUMETOFEN 12.8% + FLUDIOXONIL 21.4%) FOR PURPLE SPOT CONTROL ON ASPARAGUS FERNS; MAKE 3 FOLIAR APPLIC OF MERIVON XEMIUM TREATMENTS (2 RATES, WITH/WITHOUT NIS, 7-DAY INTERVAL) VS 2 APPLIC OF MIRAVIS PRIME + NIS (14-DAY INTERVAL), ALL IN 20-60 GPA; COMPARE VS A CHLOROTHALONIL STANDARD; BEGIN SPRAYS WHEN WEATHER IS FAVORABLE FOR INFECTION OR AT FIRST SIGNS OF DISEASE; EVALUATE EFFICACY AND CROP SAFETY; SEE PROTOCOL FOR MUCH MORE TREATMENT DETAIL; Comments: ORIGINALLY, POTENTIAL: E/CS DATA BEFORE APPROVAL FOR RESIDUE, CHANGED TO E/CS DATA ONGOING: 03/23, JPB; THE PERFORMANCE PROTOCOL FOR THIS PR# IS ASSOCIATED WITH PR# 13489 RESULTS FROM TEH PROTOCOL WILL BE POSTED TO BOTH PR#'S: 03/23, JPB; YELLOW 08/23; Two Performance trials completed 2023, awaiting decisions for moving forward with Residue studies from MFG.: 01/24, JPB; Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Hausbeck, Dr. Mary K. 21-MI-DMP RECD 5255.pdf 08/22 FOLIAR APPLICATIONS OF MERIVON SC AT 11 FL OZ/A ALTERNATED WITH BRAVO WEATHER STICK (CHLOROTHALONIL) AT 2 PT/A, MIRAVIS PRIME SC (PYDIFLUMETOFEN + FLUDIOXONIL) AT 11.4 AND BRAVO WEATHER STICK AT 2 PT/A SIGNFICANTLY DECREASED PURPLE SPOT ON ASPARAGUS COMPARED TO UTC. EQUAL TO 13 APPLICATIONS OF BRAVO WEATHER STICK AT 2 PT/A; SIGNIFICANTLY BETTER THAN 8 APPLICATIONS OF BRAVO WEATHER STICK AT 2 PT/A. Hausbeck, Dr. Mary K. 21-MI-DMP RECD 5256.pdf 08/22 FOLIAR APPLICATIONS OF MERIVON SC AT 11 FL OZ/A ALTERNATED WITH (ALT W/) BRAVO WEATHER STICK (CHLOROTHALONIL) AT 2 PT/A SIGNFICANTLY DECREASED PURPLE SPOT ON ASPARAGUS COMPARED TO UTC. SIGNIFICANTLY INFERIOR TO MIRAVIS PRIME SC (PYDIFLUMETOFEN + FLUDIOXONIL) AT 11.4 ALT W/ BRAVO WEATHER STICK AT 2 PT/A. SIGNIFICANTLY BETTER THAN A) 6 APPLICATIONS OF BRAVO WEATHER STICK AT 2 PT/A, B) QUADRIS SC (AZOXYSTROBIN) AT 15.5 FL OZ/A ALT W/ BRAVO WEATHER STICK AT 2PT/A, C) LUNA EXPERIENCE SC (FLUOPYRAM + TEBUCONAZOLE) AT 17 FL OZ/A ALT W/ BRAVO WEATHER STICK AT 2 PT/A, D) LUNA TRANQUILITY SC (FLUOPYRAM + PYRIMETHANIL) AT 11.2 FL OZ/A ALT W/ BRAVO WS SC 2 PT/A, E) APROVIA TOP SL (BENZOVINDIFLUPYR + DIFECONAZOLE) AT 11.4 ALT W/ BRAVO WEATHER STICK AT 2 PT/A, AND F) LUNA SENSATION SC (FLUOPYRAM + TRIFLOXYSTROBIN) AT 7.6 FL OZ/A ALT W/ BRAVO WEATHER STICK AT 2 PT/A. Hausbeck, Dr. Mary K. 23-MIP04 RECD 5682.pdf Three applications of Merivon (Fluxapyroxad + Pyraclostrobin) at 1x (11 fl. oz/A) and 2x (22 fl. oz/A) with or without an additive, and Merivon 2x with Perm-Up (Permethrin) were foliar sprayed at 10±1-day interval, and four applications of Miravis Prime (Pydiflumetofen + Fludioxonil) were foliar sprayed at 14-day interval in Shelby, MI. All test treatments significantly reduced purple spot compared to untreated control. No phytotoxicity was observed. Hausbeck, Dr. Mary K. 23-MIP13 5682.pdf Three applications of Merivon (Fluxapyroxad + Pyraclostrobin) at 1x (11 fl. oz/A) and 2x (22 fl. oz/A) with or without an additive, and Merivon 2x with Perm-Up (Permethrin) were foliar sprayed at 10-day interval and four applications of Miravis Prime (Pydiflumetofen + Fludioxonil) were foliar sprayed at 14-day interval in Hart, MI. All test treatments significantly reduced purple spot compared to untreated control. No phytotoxicity was observed.