经1987～1989年3年田间试验研究,结果表明,玉米受玉米螟危害形成的不同被害状,对产量的影响有明显差异,而秋季调查的植株含虫量与被害状常存在不完全相符的现象。据此提出估算玉米螟危害玉米的产量损失,依据被害状比依据虫量准确。在以一代为主的地区及一代区,当前可根据玉米被害状的调查,参照本项试验测产结果,估算玉米螟危害玉米的产量损失情况。 The results of field experiments from 1987 to 1989 showed that the effects of different damage patterns of maize caused by corn borer were significantly different from those of the control. However, the survey of plant-borne insects in autumn was not always consistent with that of the victim phenomenon. Based on this, it is estimated that the yield loss of corn borer will endanger the corn production. In a generation-based area and the first generation of districts, corn can be currently based on the investigation of the status quo, with reference to the test results of the test to estimate corn borer damage to corn yield losses.