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1962年辽宁省第二代粘虫发生的特点是:成虫量特大而幼虫量很小,为一輕发生年。初步分析。在中部等平原地区,其主要抑制因子是6月上旬的低温和6月中旬的高温干燥,推論前者影呐成虫产卵,后者影响幼虫孵化与成活。雨量影响作物生长和田間湿度。今后对大、小气候差度和成虫在不适宜环境条件下是否外迁等問題均須进行研究。
The second generation of armyworm occurrence in Liaoning Province in 1962 was characterized by a large amount of adult worms and a small amount of larvae, which was a light year. initial analysis. In the central plains, the main inhibitory factor is the low temperature in early June and the high temperature in mid-June. It is deduced that the former adult eggs lay eggs, and the latter affect larval hatching and survival. Rainfall affects crop growth and field humidity. In the future, large and small microclimate differences and adult migrations in unfavorable environmental conditions should be investigated.