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稻飞虱卵期寄生天敌对稻田飞虱种群数量起显著的抑制作用;在对稻飞虱进行发生预测和制订防治对策时,经常需要进行田间卵寄生率的调查。随着对测报工作的进一步要求和综合防治水平的提高,此项工作将在县一级的测报站普遍开展。
The natural enemies of the oviposition period of the rice planthopper significantly inhibited the population of planthoppers in the rice field. In the occurrence of planthoppers and prevention and control measures, it is often necessary to investigate the incidence of parasitism in the field. With the further requirements of the newspaper survey and the improvement of the comprehensive prevention and control level, this work will be carried out at the county-level survey station.