Abstract
In this study, the effectiveness of Fenhexamid, Captan, Cyprodinil, Pyrimethanil and Hymexazol on Botrytis cinerea isolates obtained from vineyards were determined. For this purpose, the efficacy of fungicides at 0.01, 0.05, 0.05, 0.1, 0.5, 1, 5, 10, 25 and 50μg/mL concentrations of each fungicide on mycelium development of Botrytis cinerea and on grape berries were investigated. PDA media containing different doses of fungicides were used to determine their efficacy on mycelium growth. In order to determine their efficacy on grape berries, they were wounded with a needle and treated with fungicides in two different ways, before and after infection. As a result of the experiment, Fenhexamide inhibited mycelium growth 100% at 0.5ppm, while the other fungicides hymexazole, cyprodinil and pyrimethanil inhibited 100% at 25ppm. Captan reached 100% inhibition rate only at 50ppm. In grape berries trials, fenhexamide and captan were more effective after infection, pyrimethanil was more effective when applied before infection, but hymexazole and cyprodinil had the same effect when applied before or after infection.
| Keywords: | Grape Botrytis Cinerea Chemical Control Resistance Fungicides |