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当前位置: 首页 > 文章 > 葫芦素B对甜菜夜蛾幼虫取食和成虫产卵的影响 华南农业大学学报 2005,26 (2) 61-63
Position: Home > Articles > Influence of cucurbitacin B on feeding behavior and oviposition of Spodoptera exigua Journal of South China Agricultural University 2005,26 (2) 61-63

葫芦素B对甜菜夜蛾幼虫取食和成虫产卵的影响

作  者：
董易之;张茂新;凌冰
单  位：
华南农业大学昆虫学系
关键词：
葫芦素B;甜菜夜蛾;拒取作用;产卵抑制
摘  要：
测定了葫芦素B对甜菜夜蛾1～3龄幼虫取食和成虫产卵的影响.结果表明,当质量浓度达到16 0 0 μg·mL-1时,葫芦素B对1龄幼虫有拒食作用,并降低其存活率,干扰作用控制指数(IIPC)为0 70 0 ;在相同质量浓度下,葫芦素B抑制成虫产卵,产卵抑制率达5 5 5 % ,IIPC为0 4 4 5 .
译  名：
Influence of cucurbitacin B on feeding behavior and oviposition of Spodoptera exigua
作  者：
DONG Yi-zhi, ZHANG Mao-xin, LING Bing(Department of Entomology,South China Agric. Univ., Guangzhou 510642, China)
关键词：
cucurbitacin B; Spodoptera exigua; antifeedent; antiovipositant
摘  要：
Cucurbitacin B is oxygenated tetracyclic triterpene existing in Cucurbitaceae and the plants of other families, which has repellent effect on many insects. The influence of cucurbitacin B on feeding behavior and oviposition of Spodoptera exigua was tested. The results were showed that at the concentration of (1 600) (μg·mL~(-1),) cucurbitacin B had the antifeedant activity to newly-hatched larvae and significantly lower survival rate of them, inference index of population control (IIPC) of the first instar larvae was 0.700. The cucurbitacin B deterred adult from oviposition, and the oviposition deterrent rate was 55.5% while IIPC was 0.445 at the same concentration of cucurbitacin.

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