【摘要】 为系统评价氯虫苯甲酰胺防治荔枝蒂蛀虫的应用潜力，采用浸卵法和药膜法测定氯虫苯甲酰胺对蒂蛀虫卵和成虫的生物活性，研究其对蒂蛀虫成虫寿命和繁殖力的影响，并开展田间防效试验。室内结果表明，氯虫苯甲酰胺对蒂蛀虫2日龄卵的LC₅₀为10.650 mg/L，杀卵活性显著高于高效氯氟氰菊酯，但低于除虫脲；对成虫24 h的LC₅₀为145.856 mg/L，与高效氯氟氰菊酯相当。氯虫苯甲酰胺LC₁₀和LC₃₀剂量对荔枝蒂蛀虫雄蛾寿命和子一代卵孵化率影响较小，但可有效降低雌蛾寿命和产卵量。在蒂蛀虫处于成虫产卵盛期至卵孵化期时施药1次，药后14 d调查发现，200 g/L氯虫苯甲酰胺悬浮剂1500、3000倍液处理区防效达95.29%,4500倍液处理区的防效为84.71%，这3个处理区的防效均显著高于200 g/L除虫脲悬浮剂1000倍液和25 g/L高效氯氟氰菊酯乳油500倍液的防效。氯虫苯甲酰胺是一种对防治荔枝蒂蛀虫有较大应用价值的药剂。更多还原

【Abstract】 In order to systematically evaluate the application potentials of chlorantraniliprole against Conpomorpha sinensis,the bioactivity of chlorantraniliprole to eggs,adults and the effect of chlorantraniliprole on longevity and fecundity were determined in laboratory,and the control effect was tested in the field.The result showed that the LC₅₀of chlorantraniliprole to eggs of C.sinensis which were laid for 48 h was 10.650 mg/L and the ovicidal activity of chlorantraniliprole was significantly higher than that of lambda-cyhalothrin and lower than diflubenzuron.The 24 h LC₅₀of chlorantraniliprole to adults of C.sinensis was 145.856 mg/L,which was equal to lambda-cyhalothrin.The LC₁₀and LC₃₀doses of chlorantraniliprole had small effects on the longevity of C.sinensis male adult and egg hatchability,but they could effectively reduce the longevity and fecundity of female adult.When C.sinensis was in peak oviposition period to egg incubation period,insecticides were sprayed one time.The results of 14 days after treatment showed that effect of 200 g/L chlorantraniliprole SC which was diluted 1500 and 3000 times respectively was 95.29%,and the effect of 200 g/L chlorantraniliprole SC which was diluted 4500 times was 84.71%.The effects of above three treatments were significantly higher than that of 200 g/L diflubenzuron SC 1000 times and 25 g/L lambda-cyhalothrin 500times.This study suggested that chlorantraniliprole exhibited the potential to be exploited as a control strategy for C.sinensis.更多还原