Field efficacy of fluopicolide and fosetyl-Al fungicide combination (Profiler®) for control of plasmopara viticola (Berk. & Curt.) Berl. & Toni. in grapevine

Abstract

The efficacy of new fungicide mixtures in controlling Plasmopara viticola in grapevine was evaluated in field trials. The efficacies of Profiler (fluopicolide + fosetyl-Al) and the standard fungicide Mikal Flash (fosetyl-Al + folpet) were tested at Radmilovac and Slankamenacki Vinogradi in 2006 and 2007. Both tested fungicides exhibited high efficacy in controlling grape downy mildew. There were no significant differencies in the efficacies of Profiler (96.1-99.7%) and Mikal Flash (94.9-99.2%). Our experiments showed that the investigated fungicide mixture fluopicolide + fosetyl-Al is highly effective against P. viticola, even when it it is applied at long intervals and under high disease pressure.Ispitivana je efikasnost nove kombinacije fungicida za suzbijanje Plasmopara viticola na vinovoj lozi u poljskim uslovima. U 2006. i 2007. godini ispitivana je efikasnost Profiler (fluopikolid + fosetil-Al) u odnosu na standardni fungicid Mikal Flash (fosetil-Al + folpet) na lokalitetima Radmilovac i Slankamenacki Vinogradi. Oba ispitivana fungicida ispoljila su visoku efikasnost u suzbijanju prouzrokovaca plamenjace vinove loze. Izmedju efikasnosti Profiler (96,1- 99,7%) i Mikal Flash (94,9- 99,2%), nije zabelezena statisticki znacajna razlika. Nasi ogledi su pokazali da je ispitivana kombinacija fungicida fluopikolid + fosetil-Al visoko efikasna protiv P. viticola, cak i kada se primenjuje u duzim vremenskim intervalima kao i pri uslovima jake zaraze.