由于我国北方去年干旱 ,秋天残蝗基数大 ,冬季气候条件适宜蝗卵越冬 ,致使天津、山东、河北、河南等 14个省市今年夏蝗发生面积达 15 0万ｈｍ2 ,比去年同期扩大 18%。今年蝗虫主要发生在环渤海湾沿海湖库区 ,黄河下游部分滩区、微山湖区及沿淮部分地区。其中虫情最为严重的天津 As a result of last year’s drought in northern China and the large number of residues of locusts in autumn, the winter climatic conditions are suitable for the wintering of locust eggs, resulting in the occurrence of 150 million hm2 of summer locusts in 14 provinces and municipalities such as Tianjin, Shandong, Hebei and Henan in the winter, up 18% . This year, the locusts mainly occurred in the coastal areas of the Bohai Sea rim, the beach areas in the lower reaches of the Yellow River, the Weishanhu area and parts of the Huaihe River. One of the most serious insects in Tianjin