虫害危机蔓延来自河北省农业厅的消息显示,受连续降雨影响,三代黏虫在河北迅速蔓延,且发生面积大、范围广、密度高,为近20年来最严重的一次,全省发生面积近1000万亩。目前,幼虫即将进入暴食阶段,也是大秋作物生长的关键时期,一旦防治不及时,会造成严重减产甚至绝收。分析师钱红兵指出,受连续降雨影响,三代黏虫在河北、吉林等地区迅速蔓延,农药股呈现普涨格局,首次因素影响颇大;正由于病虫灾害影响,预计2012年全国农药市场需求将保持旺盛。事实上,除北方各地面临三代黏虫的灾害,我国南方各地水灾虫害也较往年严重。据全国农作物重 Pest crisis spread From the Hebei Provincial Department of Agriculture news, affected by continuous rainfall, three generations of rapid spread of worm in Hebei, and the occurrence of large area, a wide range of high density, the most serious in the past 20 years, the province occurred near the area 1000 mu At present, the larvae are about to enter the gluttony stage and also the key period for the growth of the big autumn crops. Once the prevention and treatment is not implemented in time, severe cuts in production or even surrender will be caused. Analysts Qian Hongbing pointed out that under the influence of continuous rainfall, the third generation of armyworms spread rapidly in areas such as Hebei and Jilin. Pesticide stocks showed a general pattern of expansion. The impact of the first factor was quite large. As the pest and disease impact is expected, the 2012 national pesticide market Demand will remain strong. In fact, apart from the disaster of three generations of Myzus persicae facing the northern part of the country, flood and pest infestation in the south of our country is also serious than in previous years. According to the national crop weight