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分析2013年夏季持续高温天气对褐飞虱和稻纵卷叶螟发生发展的影响,主要表现在产卵量减少、孵化率降低、低龄幼若虫存活率下降等方面。为今后在相似年份更好地把握“两迁”害虫发生趋势,科学、合理地开展防治提供有效依据。
The impact of sustained high temperature in summer 2013 on the occurrence and development of the brown planthopper (BPH) and the rice leafroller (Cnaphalocrocis medinalis) were analyzed. The results showed that the number of spawning eggs decreased, the hatchability decreased and the survival rate of young nymphs decreased. It will provide an effective basis for better understanding of the trend of pest occurrence in “two movements” and for carrying out prevention and treatment in a scientific and rational manner in similar years in the future.