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中黑盲蝽象是南阳棉区危害棉花的主要害虫之一。棉苗被害后多形成无头苗,中、后期被害后使蕾铃脱落,棉株呈高、大、空状或形成畸形桃、烂桃,僵桃,衣分下降,对棉花的产量和品质影响极大。1987、1989年防治失时的棉田,减产达20%以上。我们从1987年以来,采用百叶箱内饲养和田间试验调查相结合的方法,对其发生规律和防治技术进行了研究。一、生活史中黑盲蝽象在南阳一年发生4代。以卵越冬,翌年4月中旬开始孵化,4月下旬达孵化盛期,1代成虫于5月中旬达羽化盛期。6月上旬2代卵开始孵化,6月下旬为2代成虫羽化盛期。3、4代成虫羽化盛期分别在8月
The black bugs are one of the major pests that endanger cotton in the Nanyang cotton area. After the cotton seedlings were killed, more headless seedlings were formed. After the mid-and late-stage victims, the buds were shedding. The cotton plants showed high, large and empty shape or formed abnormal peach, rotten peach, stiff peach and decolonization. The yield and quality of cotton Great impact. 1987, 1989 to control the loss of cotton fields, cut more than 20%. Since 1987, we have conducted a study on the regularity and prevention and control of the disease by using a combination of the methods of feeding in the veins and field experiments. First, the life-history of black bugs like Nye happen in 4 generations a year. The overwintering of eggs, the hatch began in mid-April the following year, reached the peak hatching in late April, a generation of adults reached feather in mid-May peak. In early June, the 2nd generation eggs began to hatch, and in late June, the 2nd generation adult emergence peaked. 3,4 generations of adult feathers peaked in August