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害虫卵寄生率的考查,在预测和估计幼虫的发生及为害、全面评价药剂防治效果、以及探索卵蜂的应用,均有一定意义。 三化螟卵寄生率的考查,许多研究单位,特别是有条件的病虫测报站急待开展或已在进行,但由于三化螟卵块外被茸毛,卵粒重叠多层,加之寄生蜂种类多,寄生习性又复杂,调查方法还不一致。本文就三化螟卵寄生率的检查方法进行商讨。
Pest egg parasitic rate test, in the prediction and estimation of the occurrence and damage of larvae, a comprehensive evaluation of the effectiveness of the agent control, as well as to explore the application of eggs, have a certain significance. The investigation of the parasitic rate of the stem borer eggs, many research units, especially the conditional pest forecast station to be carried out or has been carried out, but due to the outer layer of the stem borer was hairs, eggs overlap multiple layers, combined with parasitic bee species Many, parasitic habits and complex, the survey method is not consistent. This paper discusses the method of checking the parasitic rate of the stem borer, Pelophylax.