巴氏新小绥螨在马铃薯腐烂茎线虫上的实验种群生命表及其捕食作用

发布时间：2018-11-19 09:22

【摘要】：为明确巴氏新小绥螨Neoseiulus barkeri对马铃薯腐烂茎线虫Ditylenchus destructor的捕食能力,以马铃薯腐烂茎线虫和椭圆食粉螨Aleuroglyphus ovatus为猎物饲养巴氏新小绥螨,构建了巴氏新小绥螨的实验种群生命表,并构建了雌成螨对马铃薯腐烂茎线虫的捕食功能反应模型。结果显示,巴氏新小绥螨取食马铃薯腐烂茎线虫后能完成整个生活史,平均世代为6.71 d,产卵前期、产卵期、日产卵量以及雌成螨寿命分别为2.89 d、19.13 d、1.79粒和26.44 d,与取食椭圆食粉螨后的各参数间均无显著差异。巴氏新小绥螨雌成螨对马铃薯腐烂茎线虫的捕食功能反应为Holling Ⅱ型,在温度16~28℃范围内,其攻击系数(a)、捕食能力(a/T_h)、最大日捕食量(1/T_h)均随温度升高而升高,处理时间(T_h)缩短;在28℃时日捕食量达到最高,为52.69条,处理时间最短,为0.019 d;当温度高于32℃时捕食量开始下降。表明巴氏新小绥螨具有防治马铃薯腐烂茎线虫的潜力。
[Abstract]:In order to determine the predation ability of Neoseiulus barkeri to Ditylenchus destructor, the experimental population life table of Neoseia pasteuiformis was constructed with potato rotting stem nematodes and Acarus elliptica Aleuroglyphus ovatus as prey. A predatory response model of female adult mites to potato rotting stem nematodes was established. The results showed that the whole life cycle could be completed after feeding on potato rotting stem nematodes, the average generation was 6.71 days, the pre-oviposition, daily egg production and the life span of female adults were 2.89 d ~ 19.13 d, respectively. There was no significant difference between 1.79 grains and 26.44 d after feeding on Acarus ellipticus. The predation function of female adult mites of Neoseia pasteuris to potato rotting stem nematodes is Holling 鈪，

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