玉米禾螟(Chilo partellus)在玉米上造成明显的产量损失,尤其在亚洲、非洲的炎热、潮湿地区更为严重。其危害形式主要是引起叶损伤、枯心、矮化、茎穿孔和茎破裂。在玉米作物种植较少或没有害虫防治措施的耕作条件下,由于这种害虫的危害造成低产。虽然在某些国家如肯尼亚常常通过施用杀虫剂来保护作物免遭害虫危害。但是如果不及时得以保护,一些感虫品种和杂交种会受到严重危害。此时抗性品种和杂交种在防虫上显示出较大的 Chilo partellus causes significant yield losses on maize, especially in hot and humid areas of Asia and Africa. The main forms of harm caused by leaf damage, dry heart, dwarfing, stem perforation and stem rupture. Under tillage conditions where there is little or no pest control of maize crops, low yields result from the hazards of this pest. Although insecticides are often used in some countries, such as Kenya, to protect crops from pests. But if not protected in time, some susceptible varieties and hybrids will be seriously endangered. Resistant varieties and hybrids at this time showed greater resistance to insects