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Safety of thiamethoxam to Cyrtorhinus lividipennis Reuter , a predator of brown planthopper, Nilaparvata lugens in rice



Safety of thiamethoxam to Cyrtorhinus lividipennis Reuter , a predator of brown planthopper, Nilaparvata lugens in rice



Journal of Biological Control 15(1): 53-58



In greenhouse studies, thiamethoxam at 50, 25 and 12 ppm, imidacloprid at 50 ppm, fipronil at 100 ppm and the check insecticide acephate at 1200 ppm along with untreated control were assessed for their relative safety to nymphs and adults of green mirid bug Cyrtorhinus lividipennis Reuter, an effective predator of brown planthopper. For the adults of C. lividipennis, thiamethoxam at 25 ppm and 12 ppm was as safe as imidacloprid 50 ppm but less safer than acephate 1200 ppm. However, fipronil at 100 ppm and thiamethoxam at 50 ppm were less safe. For the nymphs, thiamethoxam at 12 ppm was as safe as imidacloprid 50 ppm and fipronil 100 ppm but less safer than acephate 1200 ppm. Thiamethoxam at 25 and 50 ppm was less safer than all other treatments.

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