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Position: Home > Articles > Effect of Milbemycin on the Bemisia tabaci World Pesticides 2013,35 (1) 53-55

生物农药米尔贝霉素防治烟粉虱的特性

作  者:
张慧峰;王相晶;向文胜
单  位:
东北农业大学
关键词:
烟粉虱;米尔贝霉素;防效
摘  要:
介绍了生物农药米尔贝霉素对烟粉虱的毒性及防效。有效成分1 mg/L米尔贝霉素对烟粉虱卵孵化率影响很小,但对1龄若虫致死率达100%。米尔贝霉素对1龄若虫的LC_(50)为有效成分0.02 mg/L;低用量有效成分2mg/L的米尔贝霉素与0.2%矿物油混合使用,药后3和10 d对成虫的致死率分别为96%和67%。在棉花田中,米尔贝霉素比氯氰菊酯具有更好的烟粉虱防治效果,且不伤害烟粉虱的寄生性天敌双斑恩蚜小蜂和浆角蚜小蜂。
译  名:
Effect of Milbemycin on the Bemisia tabaci
作  者:
ZHANG Hui-feng,WANG Xiang-jing,XIANG Wen-sheng (School of Life Science in Northeast Agriculture University,Harbin 150030,China)
关键词:
Bemisia tabac;;milbemycin;;control efficiency
摘  要:
Toxicity and control efficiency of milbemycin on Bemisia tabaci(Gennadius) was introduced.Milbemycin of 1 mg a.i./L had slight effect on egg hatch,whereas it performed 100%mortality rate against 1st instars.The LC_(50) of milbemycin for 1st instars was 0.02 mg a.i./L.A mixture of 2 mg a.i./L milbemycin with 0.2%mineral oil resulted in higher mortality of 96%and 67%at 3 days and 10 days after application.In the cotton field trials,milbemycin gave the better control than cypermethrin and had no negative effect on parasitic natural enemies such as Encarsia and Eretmocerus.

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