七星瓢蟲規(guī);a(chǎn)與釋放的應用效果
[Abstract]:Ladybug is one of the important natural enemies of aphids. In order to provide technical support for biological control of vegetable aphids in greenhouse, the techniques of large-scale production and release of ladybird ladybug were studied by means of indoor plastic box feeding combined with field release. The results showed that the growth and predation relationship of seven star ladybug and aphid in the field was closer to the integrated propagation technology by putting it into the plastic box of the bean aphid breeding. While increasing the growth space of ladybird, the phenomenon of killing each other in larval stage and the feeding of adults on eggs were decreased. There is no need to change and add aphids every day in the feeding process, which greatly reduces the labor force, and the whole production process is simple and easy to carry out, and can be raised on a large scale. At 1:40 (eggs: aphids) and 1:80 (larva: aphids) were released into cucumber shed. After 10 days, the control effects of ladybugs on cucumber aphids were 86.18% and 84.40%, respectively.
【作者單位】: 貴州省植物保護研究所;
【基金】:貴州省農(nóng)業(yè)科技攻關項目“七星瓢蟲飼養(yǎng)技術(shù)與應用研究”[黔科合NY字(2012)3042]
【分類號】:S476.2
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