对水稻二化螟Chilo suppressalis(Walker)为害损失及其估计方法,国内外进行过大量研究,但限于研究环境及方法的特殊性,结果差异甚大,难以通用。湖北省近年来,杂交中稻、杂交双季晚稻上二化螟的第二、三代为害显著加重,为了制定合理的防治指标,本研究对杂交双季晚稻第三代二化螟为害损失进行了田间测定。 There is a great deal of research done at home and abroad on the damage and estimation of Chilo suppressalis (Walker), but it is limited to the particularities of the research environment and methods. The results are very different and difficult to be generalized. In the recent years, the second and third generation of the hybrid rice, hybrid double cropping rice, Chilo suppressalis, significantly increased in Hubei Province. In order to establish a reasonable control index, the damage of the second generation late rice hybrid rice, Determination.