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棉蚜群集棉苗叶背后或嫩茎上刺吸汁液,受害重的,棉叶皱缩,落叶而死,严重影响棉苗早发。由于最近晴雨相间,气温回升迟缓,有利于蚜虫的大量繁殖危害。据我们在九大队一生产队定点观察,一只有翅蚜一天可繁殖小蚜8～17只。同时由于三夏期间,有些生产队忙于收种,忽视了对棉蚜防治,使棉蚜危害更为猖獗。当前,应该抓紧时间防治棉蚜。治蚜办法:(一)结合间苗,拔除有蚜棉
Cotton aphid cluster cotton seedlings sprout on the back of young or sprout sucking juice, heavy damage, cotton folds, deciduous and died, seriously affecting the cotton seedlings early hair. Due to the recent rain and rain, the slow temperature rise, is conducive to aphids mass reproduction hazards. According to our observation team in a production team of the 9th Brigade, a winged aphid can reproduce 8 to 17 small aphids a day. At the same time, due to the summer holidays, some production teams are busy receiving seeds and neglecting the control of cotton aphids, making the cotton aphid more damaging. At present, we should seize the time to control cotton aphid. Governance aphids approach: (a) combination of thinning, unplug the aphid cotton