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在室内筛选了 5种昆虫几丁质抑制剂和 1种常规杀蝗药剂对东亚飞蝗的毒效。结果表明 ,5种昆虫生长调节剂中 ,以毒饵中药剂有效含量计 ,卡死克毒效最高 ,对 4龄蝻的LC50 为 2 6 5 (16 5～ 38 0 )mg/kg ,LT50 为 4 94 6d ,抑太保次之 ,LC50 为 2 84 4 (133 8～ 4 4 9 2 )mg/kg ,LT50 为 5 2 2 7d ,其余 3种毒效较低 ;但从性能价格评估 ,则以卡死克和灭幼脲较优 ,虽然致死时间较常规杀蝗剂长 ,但由于其高选择性 ,对非靶标生物影响很小 ,对环境比较安全 ,在生产上应用价值较高。常规杀蝗药剂高效氯氰菊酯对天敌和非靶标生物影响较大
Five indoor insecticide chitin inhibitors and one conventional insecticidal locust agent were screened indoors for their toxic effects on Locusta migratoria manilensis. The results showed that among the five kinds of insect growth regulators, the toxic effect was highest with the effective content of the Chinese traditional medicine bait, with LC50 of 256 (16 5 ~ 38 0) mg / kg and the LT50 of 4 94 6d, followed by chlorpyrifos, with LC50 of 2 844 (133 8 ~ 4 4 9 2) mg / kg and LT50 of 5 2 2 7d, while the remaining three were less effective. However, from the evaluation of performance price, Although the lethal time is longer than that of conventional locust-killing agents, it has little effect on non-target organisms and is relatively safe to the environment and has high application value in production. Conventional locust locust agents beta-cypermethrin have significant effects on both natural enemies and non-target organisms