Study on the Synergies of Biological Pesticides for Liriomyza huidobrensis Blanchard

During the pests heavily happened, Abamectin, matrine, pyrethrum+matrine, azadirachtin, chlorpyrifos, imidacloprid were used to control the Liriomyza huidobrensis Blanchard in field. The results showed that 0.3% azadirachtin, 0.5% veratridine can control Liriomyza huidobrensis Blanchard better than biological pesticides. Palmityl alcohol and 0.3% azadirachtin, 60 palmityl alcohol was the best to inhibit hatching, egg hatchability for 13.45%. Palmityl alcohol of 3 different concentrations can influence oviposition of Liriomyza huidobrensis Blanchard, it was 72.4% that 40 times has the highest rates of refusal to lay eggs after 4 days. 40 times palmityl alcohol had good effect for antifeedant, after 4 days the adult Antifeedant rate was 70.2%. 0.3% azadirachtin was ineffective to inhibit hatching, the antifeedant rate was 30.5% using the 150 ppm after 5 days.