防治油茶尺蛾药剂筛选试验.doc

防治油茶尺蛾药剂筛选试验* 李东文1 陈志云1 王玲1 李奕震2 (1.中山市森林病虫害防治检验站 中山 528403；2.华南农业大学林学院) 摘要 油茶尺蛾(Biston marginata Shiraki )是近年来广东省中山市阔叶混交林内出现的重要害虫。室内试验15%茚虫威悬浮剂4000倍液、10%除尽悬浮剂2000倍液、16000UI/mg Bt可湿性粉剂1000倍液、3.2%甲维盐乳油5000倍液、40%辛硫磷乳油2000倍液、2.8%阿维菌素乳油10000倍液和90%敌百虫晶体1000倍液致幼虫死亡均达100%。林15%茚虫威悬浮剂4000倍液、10%除尽悬浮剂2000倍液、16000UI/mg Bt可湿性粉剂1000倍液、3.2%甲维盐乳油5000倍液、40%辛硫磷乳油2000倍液和90%敌百虫晶体1000倍液的杀虫效果均达100%，而2.8%阿维菌素乳油10000倍液的杀虫效果为84.48%Biston marginata Shiraki Li Dongwen1 Chen Zhiyun1 Wang Ling1 LI Yizhen2 （1.Forest Pest Management and Quarantine Station of Zhongshan City,Zhongshan，528403 ；2.College of Forestry，South China Agricultural UniversityGuangzhou）Biston marginata Shiraki was an important pest of broad-leaved and broad-leaved mixed forests in Zhongshan city of Guangdong province in recent years.The control technologies of Biston marginata were studied in the laboratory. The results showed that the insecticides which were 4000 dilution of suspensions of 15% indoxacarb, 2000 dilution of suspensions of 10% chlorfenapyr, 1000 dilution of wettable powders of 16000UI/mg Bacillus thuringiensis, 5000 dilution of 3.2% emamectin benzoate EC, 2000 dilution of 40% phoxim EC , 10000 dilution of 2.8% avermectins EC and 1000 dilution of 90% dipterex?crystal had good control effects to the larvae, the lethality of all of them reached 100%.By means of assaying the toxicity of several insecticides in the forest, the results showed that the control effects of 4000 dilution of suspensions of 15% indoxacarb, 2000 dilution of suspensions of 10% chlorfenapyr, 1000 dilution of wettable powders of 16000UI/mg Bacillus thuringiensis, 5000 dilution of 3.2% emamectin benzoate EC, 2000 dilution of 40% phoxim EC and 1000 dilution of 90% dipterex?crystal reached 100% ,and the effect of 10000 dilution of 2.8%avermectins EC was 84.48%. Keywords：Biston marginata油茶尺蛾(Biston marginata Shiraki )分布于江西、湖南、湖北、广东、广西、台湾等地，广东省中山市2004年开始发现油茶尺蛾危害当地改造过的阔叶林，主要危害樟Cinnamomum camphora、荷木Schima superba、相思类Acacia南洋楹Albizi