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今年我省地下害虫将中等程度发生。中等发生的地区有营口、沈阳、鞍山、丹东、锦卅、朝阳,中等偏轻发生的地区有盘锦、抚顺、铁岭、阜新、本溪、新金县。但部分地区有局部偏重现象。预报依据:1.越冬虫量.据13个市、31个县、79个乡镇(场、所)冬前挖土调查结果表明。每平方米越冬虫量蛴螬为0.79头,蝼蛄为0.105头,金针虫为0.27头,其它地下害虫为0.57头。全省地下害虫每平方米越冬虫量为1.74头,接近去年。其中地下害虫每平方米越冬总虫量3头以上的有本溪市;1—3头的有营口、沈阳、鞍山、丹东、锦州、朝阳;小于1头的有辽阳、抚顺、铁岭、阜新、新金县和盘锦。2.生态环境.近几年我省部分地区花生和大豆面积扩大,蛴螬发生为害明显加重。如锦西市1986年总播种面积73万亩,其中花生面积18万亩,蛴螬每平方米越冬虫量为1.47头,比锦州地区其他6个县多0.49—1.44头。
This year, underground pests in our province will occur to a moderate extent. Medium-sized areas are Yingkou, Shenyang, Anshan, Dandong, Jinli, Chaoyang, moderately-prone areas are Panjin, Fushun, Tieling, Fuxin, Benxi and Xinjin counties. However, some regions are partially biased. Forecast based on: 1 overwintering amount of ground.According to the survey results of the winter excavation of 13 towns, 31 counties and 79 townships (farms and institutes) before winter. The amount of wintering 蛴 每 per square meter was 0.79 head, 蝼 蛄 0.105 head, pinworm 0.27 head, the other underground pests 0.57 head. The number of pest insects per square meter of pests across the province was 1.74, close to last year. Among them, there are more than 3 pests per square meter of winter wintering in total in Benxi City; there are Yingkou, Shenyang, Anshan, Dandong, Jinzhou and Chaoyang in 1-3; there are Liaoyang, Fushun, Tieling, Fuxin, Jinxian and Panjin. 2. Ecological Environment In recent years, the peanut and soybean areas in some areas of our province have been expanded, and the incidence of catfish poisoning has apparently increased. For example, in Jinxi City, the total sown area was 730,000 mu in 1986, of which peanut area was 180,000 mu. The number of wintering pests per square meter was 1.47, 0.49-1.44 more than the other 6 counties in Jinzhou.