Özet:

The research was conducted with an aim to determine the effects of plant extracts lethal for potato beetle (Leptinotarsa decemlineata Say.) as an alternative to synthetic pesticides in laboratory and field conditions. In this study, Agria potato cultivar (Solanum tuberasum L. cv.) were treated with imidacloprid, azadirachtin, Bacillus thuringiensis, sage and rosemary extracts for possible use in control of potato beetle in the field and laboratory conditions. The effect of the imidacloprid, biological and plant preparations on death rate of potato beetle was statistically significant (p<0.01). In both laboratory and field conditions, while nodeath of potato beetle occured at control parcels, death rate of potato beetle was 100% at chemical insecticide treatments. Death rate of potato beetle at field condition by azadirachtin, Bacillus thuringiensis, sage and rosemary extracts treatments were determined as 92.9%, 85.9%, 82.5% and 85.9%, respectively; at laboratory condition the death rate were 97.5%, 94.5%, 88.5% and 89.9%, respectively,. Effects of sage and rosemary extracts in the management of potato beetle were lower than imidacloprid treatments, and were closed to azadirachtin and Bacillus thuringiensis.

Anahtar Kelimeler: