印楝素制剂对锈色粒肩天牛成虫和卵的生物活性测定  

Biological activity of azadirachtin on adults and eggs of the longhorn beetle Apriona swainsoni (Hope)(Coleoptera:Cerambycidae)

作　　者：王晓红[1] 杨忠岐[1] 魏建荣[2] 王小艺[1] 辛贺奎 张鸣放 杨晶晶 

机构地区：[1]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室,北京100091 [2]河北大学生命学院,河北保定071002 [3]河南省濮阳市森林病虫害防治检疫站,濮阳市457000 [4]河南省濮阳县森林病虫害防治检疫站,濮阳县457100

出　　处：《环境昆虫学报》2010年第4期493-497,共5页Journal of Environmental Entomology

基　　金：国家十一五科技支撑计划项目(2006BAD08A12);科技部公益研究项目(2004DIB4J166)

摘　　要：为了探索锈色粒肩天牛Apriona swainsoni(Hope)成虫期利用高效低毒的生物药剂防治技术,使用梯度浓度的印楝素制剂处理国槐当年生嫩枝,供锈色粒肩天牛成虫补充营养时取食,以研究其对锈色粒肩天牛成虫胃毒、拒食、产卵量及卵孵化率的影响。结果表明,不同浓度印楝素药液对锈色粒肩天牛均具有一定的生物活性。0.3%印楝素乳油300倍、400倍、500倍、600倍及700倍液处理后第6d时,成虫的死亡率分别达97.6%,86.0%,73.8%,50.0%和36.1%;拒食作用也比较明显,300倍、400倍液处理的拒食率达到了94.87%和90.22%,取食量显著低于对照,500倍、600倍及700倍液处理的拒食率分别为61.28%、41.54%和37.00%;不同浓度药液均使成虫产卵量、卵的孵化率显著低于对照。表明在锈色粒肩天牛成虫期,在其寄主国槐枝条上喷洒300倍或400倍印楝素乳油能有效防治该天牛成虫。The branches of Sophora japoncia treated with different solution of azadirachtin were fed to the adults of the longhorn beetle Apriona swainsoni. The effects of the insecticide azadirachtin on adult survival,antifeedant activity,oviposition and egg hatching were investigated. The results showed that all treatments with azadirachtin exhibited significant toxicity against Apriona swainsoni. When the concentration was dilute by 300-fold,400-fold,500-fold,600-fold and 700-fold,the mortalities of the adults were 97.6%,86.0%,73.8%,50.0% and 36.1% within 6 days,respectively. The antifeedant activity enhanced accordingly with increasing and prolongation of concentration and time. the antifeeding rates of the treatments of 300-fold and 400-fold were 94.87%,90.22% within 6 days,respectively. The consumption of the branches was significant less than that in control. When the concentration was diluted by 500-fold,600-fold and 700-fold,the antifeeding rates of the beetle adults were 61.28%,41.54% and 37.00% within 6 day,respectively. The oviposition and egg hatching rates of females,which had been fed on the twigs treated with different concentration of azadirachtin,were significant less than that in control.

关 键 词：锈色粒肩天牛 印楝素 生物活性 拒食作用 卵孵化率 

分 类 号：S763.38[农业科学—森林保护学]