欧洲玉米螟(Ostrinia nubilalis)危害引起的玉米产量损失已有不少人进行过研究。一般认为玉米产量的损失随危害时期、危害时植株的发育阶段以及年份等不同而异。同样的条件下,抗性基因型的玉米产量损失较小。Chiang 等(1961)和 Hill 等(1967、1973)曾 Many people have studied the loss of maize yield from the European corn borer (Ostrinia nubilalis). It is generally accepted that the loss of maize yield will vary with the period of the hazard, the stage of development of the plant at the time of the hazard, and the year. Under the same conditions, the yield loss of resistant genotypes was smaller. Chiang et al. (1961) and Hill et al. (1967, 1973)