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根据1979年秋在我省10个市地的6,595块地上,开展地下害虫越冬种类、数量调查的结果,结合今春天气形势,提出如下建议,供各地制定防治计划时参考.一、发生趋势及特点我省今年春季,蛴螬的发生将重于1978年,主要发生区域在铁岭、沈阳、辽阳一带,假如不出现倒春寒,蛴螬始发期要早(5月10日前后),为害重且持续期要长(可拖到6月15日左右).如果出现倒春寒,则始发期拖后,作物受害也轻.蝼蛄将在我省低洼沿河、沿海
According to the results of the survey on the types and quantities of overwintering pests on the ground in 6,595 plots in 10 cities and districts in the autumn of 1979 in light of the weather conditions in this spring, the following suggestions are made for reference when formulating prevention and control plans. This spring, the occurrence of the emu will be heavier in 1978, the main occurrence of the area in Tieling, Shenyang, Liaoyang area, if there is no late spring, emu starting period (early May 10), heavy and longer duration (May be dragged to June 15 or so.) If there is late spring, then the onset of the delay, crop damage is light. 蝼 蛄 will be in our province along the river, along the coast