2024年4月24日 星期三
苦皮藤乳油对小菜蛾种群控制效应评价
The evaluation of control effect of celangulim on Plutella xylostella L.population
2002年 第11卷 第1期 页码[40-43]    下载全文[2.3MB]  
摘要

在室内外试验的基础上, 应用生命表技术评价 1%苦皮藤( Celastrus angulatus Maxim .) 乳油对小菜蛾( Plutella
xylostella
L.) 种群的控制作用, 结果表明, 其控制作用主要表现在对成虫产卵的忌避作用和对幼虫的拒食作用
10.00 mL/ L 的苦皮藤液效果最佳, 对成虫的忌避率为 73.2%, 对幼虫的选择性和非选择性拒食率分别为 94.7 %
93.5%, 小菜蛾种群趋势指数 I 值由对照的 21.614 0 降为 0.668 4, 干扰作用控制指数为 0.030 8

 

Abstract

Effect of celangulim on population dynamics of the diamond back moth ( DBM) , Plutella xylostella L ., was investigated in both laboratory and field, and evaluation was carried out with life-table technology .The results showed that celangulim strongly deterred the adult from laying eggs and significantly inhibited larval feeding on the plant with it .The fine effect was received when 10 .00 mL/L of celangulim was applied .At this concentration, 73 .2 %of the adults of P .xylostella was kept away from the host plant, and the selective and non-selective antifeeding rate were 94 .7 % and 93 .5 % respectively .The index of population trend of P .xylostella decreased to 0 .668 4 from 21 .614 0 in the control .The interference index of population control was 0 .030 8 .
 

关键词小菜蛾; 苦皮藤乳油; 生态控制; 评价;
Key wordsdiamond back moth; Plutella xylostella L.; celangulim; ecological control; evaluation
作者侯有明1, 尤民生1, 庞雄飞2, 梁广文2
所在单位1.福建农林大学植物保护学院, 福建 福州 350002;
2.华南农业大学昆虫生态研究室, 广东 广州 510642
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基金项目中国博士后科学基金( 2000) ; 福建省科学技术委员会资助项目( 97-Z-220) ; 福建省教育厅资助课题(K20031)