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玉米黑毛虫是广西河池、百色、南宁、柳州等地区部分山区县早、中玉米苗期的主要害虫,其种类较多,以白毒蛾、八点灰灯蛾发生危害最严重。2月中旬至3月下旬,玉米常受越冬幼虫为害,特别是种在石头多、地块小的玉米地受害尤重。幼虫畏光,白天躲在石缝、土隙以及杂草丛间,黄昏后或者阴天成群结队出来觅食。玉米受害后,轻的叶片被咬成缺刻,重的则几乎被吃
Corn black caterpillars are the main pests of early and middle maize seedling stage in Hechi, Baise, Nanning, Liuzhou and other areas in Guangxi. Their species are more serious, and the most serious is the occurrence of the white-spotted moth and the eight-spotted gray moth. From mid-February to late March, maize is often harmed by overwintering larvae, especially those planted in more-rocky, smaller plots of corn. Larvae photophobia, hiding in the crevice during the day, soil crevices and weeds, dusk or cloudy days in droves to feed. After the corn has been damaged, the light leaves are bitten and the heavy ones are almost eaten