蚜虫,群众叫腻虫,是我省小麦的主要害虫。常年蚜虫危害损失产量10～20%,严重时高达30%以上。小麦蚜虫的种类危害我省小麦的蚜虫有麦长管蚜、麦无网长管蚜,禾谷缢管蚜、麦二叉蚜和红腹根蚜等五种,以前三种危害为主。昆明地区以麦无网长管蚜危害为主,通常占45%左右,麦长管蚜次之,占43%左右,禾谷缢管蚜占15%左右。麦长管蚜在小麦苗期、分蘖期、灌浆成熟期发生的数量大;禾谷缢管蚜在小麦拔节期、抽穗期危害重;麦无网长管蚜在孕穗、灌浆期危害比率大,一般可以达到50%以上。 Aphids, the masses called greasy worms, wheat is the main pest in our province. Perennial aphids harm the yield of 10 to 20%, up to 30% in severe cases. The types of wheat aphids endanger the aphids in wheat in our province have wheat aphid, wheat without net long aphids, cereal aphid, wheat aphid and red belly aphid five, the previous three kinds of hazards based. In Kunming, the harm of the aphids was mainly caused by wheat without net, accounting for about 45% of the total. The wheat aphid was the second, accounting for about 43% of the total, while the wheat aphid accounted for about 15%. Wheat aphid in the wheat seedling stage, the tillering stage, filling the maturity of the large number of occurrence; wheat Aphis gossypii jointing stage of wheat, heading heavy endangerment; wheat without network aphids in the booting, filling a large hazard ratio, Generally can reach more than 50%.