三種捕食性瓢蟲成蟲對卵的種內(nèi)自殘及其集團(tuán)內(nèi)捕食作用
[Abstract]:Predatory ladybug is a kind of important natural enemy insects in farmland ecosystem. The phenomena of intraspecific self-harm and intra-group predation are common in predatory ladybugs. In this study, selective and non-selective experiments were carried out to analyze the effects of different color ladybug, ladybird and ladybug adults on intraspecific and intraspecific predation of eggs, as well as the effects of chemical substances on egg surface on intra-cluster predation. The results showed that, in the non-selective experiment, three predatory ladybug adults showed similar feeding on eggs, that is, the most eggs were eaten on ladybird eggs, the next was ladybug eggs, and the eggs were less on different color ladybugs eggs. In the selective test, both ladybug and ladybug preferred to feed on the same species eggs, but less on the eggs of ladybird beetles. The eggs of three species of ladybug were washed with n-hexane, but the adults of ladybug, ladybird and ladybug showed no preference for egg feeding. 3 species of ladybug eggs were washed with n-hexane, but the adults of ladybird, ladybird and ladybug showed no preference for egg feeding. 3 species of ladybug eggs were washed with hexane. This study can provide a theoretical basis for the combination release and coordinated utilization of predatory ladybugs, the evaluation of predation in field groups and its application in biological control.
【作者單位】: 濰坊科技學(xué)院;北京市農(nóng)林科學(xué)院植物保護(hù)環(huán)境保護(hù)研究所;
【基金】:國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973)項(xiàng)目(2013CB127600) 北京市博士后工作經(jīng)費(fèi)資助項(xiàng)目
【分類號】:S476.2
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