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在棉花栽培管理中,农户往往看到棉苗上有几只棉蚜就心中惊慌,立即施药,其实不必要。棉花的营养生长与生殖生长是互相依存,又相互制约的,两者相互协调。蚜虫吸取棉花液汁后,单从外表看,棉苗生长似乎稍微缓慢些,但是这有利于有机养料运输与分配转向到蕾铃等生殖生长方面,使蕾铃脱落减少。我们曾做过两年试验,在同一观察圃内设治虫与不治虫两个区,面积各1亩。移栽、削草松土、施肥等
In cotton cultivation and management, farmers often see the cotton seedlings on the number of cotton aphids panic in mind, immediately spraying, in fact, unnecessary. Cotton’s vegetative and reproductive growth are interdependent and mutually restrictive, and the two are in harmony with each other. Aphids absorb cotton juice, single from the appearance, the growth of cotton seedlings seem to be slightly slower, but this is conducive to the transport and distribution of organic nutrients turned to the buds and other reproductive growth, reducing the loss of buds. We have done two years of testing and have set up two zones of pests and pests in the same observation area with an area of 1 mu each. Transplanting, cutting loose soil, fertilizer and so on