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近几年来,以瓢虫防治棉蚜在全国各地广泛应用,防治面积迅速扩大,防治效果显著.如河南安阳县1973年防治面积13万亩,1974年扩大到28万亩,安阳地区在1974年达74万亩,山东省聊城县治蚜面积达6.8万亩.我省的眉县、渭南、咸阳等地都开展了利用瓢虫防治棉蚜的示范,取得了显著的成绩.防治效果一般达95%以上,可控制蚜害达35—40天,实现了“治蚜不用药,棉花不卷叶”的目的.
In recent years, the ladybug control of cotton aphid widely used throughout the country, the rapid expansion of prevention and control area, prevention and treatment of significant effects such as Henan Anyang County in 1973 prevention and control area of 13 mu, 1974 expanded to 28 mu, Anyang area in 1974 Reached 740000 mus, Liaocheng County, Shandong Province governance aphid area of 68000 acres.Mei County, Weinan, Xianyang and other places have carried out the use of ladybugs cotton aphid prevention and control of the model and achieved remarkable results.Prevention and control of the effect of up to 95 %, Can control aphid damage up to 35-40 days, to achieve “cure aphids do not medication, cotton does not curled” purposes.