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棉中黑盲蝽是我省棉花重要害虫之一。近年来,由于耕作制度的多样化和施肥水平的不断提高,人为地为其创造了丰富的寄主或食源,致使盲虫春象的危害损失有所加重。1985年我省仙桃市发生危害面积达30万亩,约占全市棉田面积的50％,个别受害重的田块百株虫量高达170多头,严重地影响了棉花的产量和品质。一、危害中黑盲蝽的成虫和若虫以其刺吸式口针插入棉株含氮量高的嫩头、嫩叶、蕾及幼铃等部位,一方面刺吸棉株组织内的汁液,另一方面注入唾液,使细胞坏死或使其畸形生长。棉苗初现真叶期生长点受害后,变黑变枯,只留下两片子叶,受害
Lygus cotton is one of the major cotton pests in our province. In recent years, due to the diversification of cultivation system and the continuous improvement of fertilization level, artificially created rich host or food source for them, which has caused the loss of harm to the blind elephant. In 1985, the damage area of Xiantao City in our province reached 30 million mu, accounting for about 50% of the total area of the cotton field in the province. The number of individual insects per hundred was more than 170, which seriously affected the yield and quality of cotton. First, endanger Nymph infestation adults and nymphs into its piercing suction needle inserted into the high nitrogen content of cotton plants tender leaves, buds and young bell and other parts, on the one hand to spit cotton plant tissue juice, On the other hand, saliva is injected to cause cell necrosis or deformity. Emergence of true growth of cotton seedlings point after the onset of damage, become black and dry, leaving only two cotyledons, victims