Abstract
The mating disruption method (MD), which is biotechnical against Lobesia botrana Den. et Schiff., a significant pest of vineyards, has been applied in vineyards; and the area exposed to this application and the control trial area (CA) were compared in terms of predators. Sampling was started on 07.04.2013 and 31.03.2014 in 2013 and 2014 at the mating disruption applied area and the control trial area upon formation of the vine leaves. The result of the sampling indicated that the most frequently seen predators were Chrysoperla carnea (Stephens, 1836) (Neuroptera:Chrysopidae) and Coccinella septempunctata (L., 1758) (Coleoptera:Coccinellidae). When the infestation rate on the bunches in the vineyard, where mating disruption was applied, exceeded 5%, that is the economic loss threshold, Bacillus thuringiensis ssp. kurstaki was applied twice against the 1st and 3rd generations in 2013; and for 3 times against the 1st, 2nd and 3rd generations in order to decrease the intensity of the population. Insecticide was applied against L. botrana on the control trial area very frequently and unconsciously; namely for 7 times until harvest in 2013, and for 8 times until harvest in 2014. In the vineyard, where mating disruption was applied, fungicides were applied for 5 times in 2013 against diseases such as Uncinula necator, Botrytis cinerea and Plasmopara viticola, however fungicides were applied in the control trial area for 8 times in the same year; in 2014 fungicides were applied against the above-mentioned diseases on the mating disruption applied area for 4 times, however fungicides were applied for 7 times on the control trial area in the same year.
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