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棉红铃虫pectinophora gossyiella (Saunders)为害青铃的调查,有些地方由于未能掌握正确的检查方法,所得结果差异甚大。棉红铃虫在青铃上的侵入孔很小,不容易看清,因此需先查看虫道或突起,再循迹查到侵入孔,按侵入孔数来确定为害的虫量。如果单根据虫道、突起,往往会将1头幼虫在二个相邻的铃瓣上形成的虫道误记成2头虫,或将由其它虫或生理原因造成的突起误认为棉红铃虫为害,产生了
Cotton Cyanobacteria pectinophora gossyiella (Saunders) polluted green bell survey, in some areas due to failure to master the correct test methods, the results obtained vary widely. Cotton bollworm intrusion on the green bell is very small, not easy to see, so you need to check the larvae or protrusions, and then track the invasion of invasive holes, according to the number of invasive holes to determine the amount of harmful insects. If only according to the larvae, protrusions, often one larvae formed on two adjacent bell petals mistakenly recorded as two pests, or by other pests or physiological causes of the protrusions mistaken for cotton bollworm Harmful, produced