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近几年来,中华稻蝗在新乡市沿黄稻区发生面积及危害程度逐年加重,已严重威胁到沿黄稻区水稻的安全生长,成为水稻生产上的主要害虫之一。发生危害概况新乡市沿黄稻区种植水稻40多万亩,年产优质无污染稻谷15万多吨,是新乡市稻谷的主要产区。50年代末期,中华稻蝗曾在新乡市发生危害,随着有机氯制剂的普遍施用,曾较长时间内得到了控制。但是自1983年以来,中华稻蝗又开始回升,面积逐年扩大。原阳县1983年仅零星发生,1985年发生0.2万亩,1986年0.63万亩,1987年3万
In recent years, the occurrence and harm degree of Oxya chinensis in the area along the Yellow River in Xinxiang City has been increasing year by year, which has seriously threatened the safe growth of rice along the Yellow River and became one of the major pests in rice production. Hazard profile Xinxiang City, along the Yellow River rice paddy planting more than 40 acres, with an annual output of more than 150,000 tons of high-quality non-polluting rice, rice is the main producing areas of Xinxiang City. In the late 1950s, Chinese rice grasshopper had a hazardous situation in Xinxiang City, with the widespread application of organic chlorine preparations, had been controlled for a long time. However, since 1983, the Chinese rice grasshopper began to pick up and its area expanded year by year. Yuanyang County in 1983 only sporadic occurred in 1985, 0.2 acres, 0.63 acres in 1986, 30,000 in 1987