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Cold hardiness of overwintering larvae of chilo suppressalis at different ages .

二化螟不同年龄段越冬幼虫的耐寒性比较。

Meteorological conditions of corn borer mortality rate during overwintering and its forecast model .

玉米螟越冬死亡率的气象条件及其预报模型研究。

Frost , if severe and long enough , kills exposed aphids , but enhances development of overwintering eggs .

霜冻，如果是时间较长的霜冻，则可杀死裸露的蚜虫，但可引导产生越冬卵。

China forest frog ; artificial pond ; incubation rate ; overwintering percentage .

中国林蛙；人工池塘孵化；孵化率；越冬率。

The distribution patterns of diseased plants seriousness in overwintering period and flowering stage were of aggregation distribution .

病级分布在越冬期和盛花期均为聚集分布。