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一、发生消长规律1.越冬场所棉蚜既可以孤雌蚜的形态在室内花卉上安全越冬,也可以滞育卵的形态在室外严寒条件下越冬。棉蚜产卵的寄主植物有19种之多,主要是木槿、石榴、花椒、黄金树等,棉蚜卵多附着在越冬寄主的芽苞、叶痕、裂缝和翘皮处。2.发生规律南疆早春3月下旬,越冬蚜卵陆续孵化为干母,在越冬寄主上繁殖几代后,即产生有翅蚜向第2寄主迁移(第2寄主主要为棉花、红麻等锦葵科作物,
First, there is a law of growth and decline 1 overwintering place cotton aphid can be parthenogenetic aphids in the indoor flower on the safe winter, diapause eggs can also form the winter winters in outdoor conditions. There are 19 species of host plants that spawn in cotton aphid, mainly hibiscus, pomegranate, pricklyash, and golden tree. Most of the cotton aphid eggs attach to buds, leaf marks, cracks and skins of overwintering host plants. 2. Occurrence regular Southern early spring in late March, wintering aphid eggs hatch gradually dry mother, in the wintering host breeding several generations, that is, a winged aphid migrate to the second host (the second host mainly cotton, kenaf, etc. Mallow Branch Crops,