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在北疆棉区 ,棉蚜性母产生于 8月底 9月初 ,雄性蚜较雌性母晚 15～ 2 0天 ,与雌性成蚜出现期基本吻合。 10月上旬可在原生寄主植物上始见棉蚜卵 ,10月中旬至月底是产卵盛期 ,11月上、中旬是产卵末期。棉蚜卵不但能在保护条件下 ,而且也能在室外自然条件下的原生寄主上安全越冬 ,春季孵出若蚜 ,并在叶片上建立种群 ,发展成重要的蚜源基地。在原生寄主上的棉蚜 ,4月底 5月初产生有翅侨迁蚜 ,因此 ,应于 4月底前彻底消灭原生寄主上的棉蚜。
In the northern cotton area, the cotton aphid sex female was born in late August and early September. The male aphid was 15-20 days later than female female, which was consistent with the appearance of female aphid. In early October cotton aphid eggs can be seen on the native host plants. The mid-October to the end of the month is the peak of spawning. In November, mid-and late-stage spawning ends. Cotton aphid eggs can not only protect under the conditions of protection, but also in the outdoor natural conditions on the host of the safe winter, hatched in spring aphids, and the establishment of the population on the leaves, developed into an important base of aphids. Aphis gossypii on the primary host, late April and early May, produces a winged migrating aphids, and therefore cotton aphids on the virgin host should be eliminated completely by the end of April.