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Position: Home > Articles > PREDATION OF SEVERAL PREDATORS TO COMMON CUTWORM, Spodoptera litura Acta Agriculturae Shanghai 2001,21 (4) 81-84

几种天敌对斜纹夜蛾幼虫的捕食作用

作  者:
蒋杰贤;梁广文;王奎武
单  位:
湖南农业大学科学技术处;华南农业大学农业部昆虫生态;毒理重点开放实验室;上海市农业科学院植物保护研究所
关键词:
斜纹夜蛾;捕食性天敌;功能反应;叉角厉蝽
摘  要:
测定了几种主要捕食性天敌捕食斜纹夜蛾 1~ 2龄幼虫的功能反应。结果表明 ,草间小黑蛛雌成蛛、拟水狼蛛雌成蛛和叉角厉蝽 2龄若虫对斜纹夜蛾 1~ 2龄幼虫均有较强的捕食能力 ,其理论最大捕食量分别为 6 .12头、2 6 .0 0头和 10 .11头。在斜纹夜蛾幼虫的 6个龄期中 ,最适合于叉角厉蝽雌成虫捕食的龄期为 4龄 ,其理论最大捕食量高达 10 .5 9头
译  名:
PREDATION OF SEVERAL PREDATORS TO COMMON CUTWORM, Spodoptera litura
作  者:
Jiang Jiexian ( Plant Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106 ) Liang Guangwen ( The Key Lab. of Insect Ecology and Toxicology, Chinese Ministry of Agriculture, South China Agricultural University,
关键词:
Spodoptera litura F.; Predators; Functional response; Cantheconidea furcellata Wolff
摘  要:
The functional responses of Erigonidium graminicola (Sundevall), Pirata subpiraticus Boes.et str and Cantheconidea furcellata Wolff to the 1st~2nd instar larvae of common cutworm, Spodoptera litura , and the female adult of C.furcellata to various stage larvae of S.litura were determined by HollingⅡtype model in experiments. The results showed that the three predators had significant predation on the 1st~2nd instar larvae of S.litura . The theoretic max. number of the prey captured by E. graminicola, P. subpiraticus and C. furcellata is a 6.12,26.00 and 10.11 larvae respectively. Instar IV is most suitable for female adults of C. furcellata capturing in six instar of S.litura larvae, and the max. number of the prey captured is 10.59 larvae.

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