冬季大部分农业害虫都进入越冬时期,抓住这一环节,进行除治,可起到事半功倍的效果。比如消灭一只棉铃虫,一年凡殖四代,一代产1000多粒卵,就等於为明年消灭了4000多条棉铃虫;冬季消灭一个头蚜虫,如棉蚜,它一年凡殖20多代,每代产60—70头,为明年消灭的蚜虫也是一个庞大的数字。 Most winter agricultural pests have entered the winter period, to seize this link, in addition to governance, can play a multiplier effect. For example, the elimination of a cotton bollworm, a generation of four generations a year, a generation of more than 1,000 eggs, is equivalent to the annihilation of more than 4,000 pieces of cotton bollworm next winter; eliminate a head aphids in winter, such as cotton aphid, which breeds more than 20 Generation, 60-70 heads per generation, is also a huge figure for the aphids to be eliminated next year.