Summary of four years research of cherry fruit fly control in the CzechRepublic

摘要

The different preparations suitable for organic agriculture were tested against cherry fruit fly (Rhagoletis cerasi L.) on three localities in the Czech Republic and Slovak Republic (South Moravia, Bile Karpaty mountains and Middle Bohemia) over the years 2012-2015. Low efficacy was recorded in case of Quassia amara extract in dosage 3.5 kg of wood chips per hectare. It was only 38.6 %. Similarly Beauveria bassiana based product Naturalis-L reached efficacy 13.6-57.1 % during 2013 and 2014. The higher efficacy was observed in case of Spruzit Flussig (natural pyrethrins) on two locations during 2015. The efficacies were 66.7 and 88.1 %. In the same year two preparations on attract and kill method based were tested. Spintor Fly (spinosad) reached thehighest efficacy 100 %, while the second preparation NeemAzal T/S with food bait reached efficacy only 27.4 %.