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据全国农技推广服务中心预测,今年夏季东亚飞蝗大发生的形势已成定局,预计发生面积将达到1400多万亩,其中需防治的面积达1100万亩,发生规模暴发强度和防治任务将接近或超过去年同期水平。据各地调查,今年春季东亚飞蝗蝗卵密度显著提高,河南、河北、山东、天津等省市均接近或高于严重发生的2000年。土蝗在全国发生面积预计在7000万亩左右,发生规模和程度将接
According to the National Agricultural Technology Extension Service Center predicted that this summer, the occurrence of migratory locusts East situation is a foregone conclusion, the estimated area will reach more than 1400 million mu, of which 11 million mu need to control the area, the intensity of the outbreak of scale and prevention and control tasks will be Close to or over the same period last year. According to local surveys, the locust egg density of East Asian locusts increased significantly this spring. The provinces and municipalities of Henan, Hebei, Shandong and Tianjin were all close to or higher than the serious ones that occurred in 2000. Soil locust occurred in the country is estimated that the area is about 70 million mu, the scale and extent will be taken