报道了灰斑古毒蛾对国家级重点保护植物沙冬青的危害及防治.灰斑古毒蛾在内蒙古自治区乌海市及其邻近地区1年发生2代,以卵越冬,翌年5月中下旬越冬卵较整齐地孵化出第1代幼虫.第1代幼虫危害沙冬青的幼嫩组织,尤其对未成熟果荚和种子的危害最为严重,部分地段受害株达64%,果荚受害率达65.8%,造成结籽率和种子质量严重下降,加剧了其濒危程度.灰斑古毒蛾的防治可采用人工摘茧、生物防治、化学防治等方法.沙冬青为约株高2m的灌木,植株分散,采用人工摘茧的方法效果较好,且对人畜无害.环境温湿度对幼虫的生长发育及存活有明显的影响. Reported on the gray moths on the national key protected plant Ammopiptanthus militaris and prevention and treatment. Gray moths in Inner Mongolia Autonomous Region Wuhai City and its neighboring areas occur 2 years a year, with the egg overwintering, the following year in mid-late May overwintering eggs The 1st generation larvae hatch neatly.And the first generation larvae endanger the young tissues of A. solani, especially the immature pods and seeds, the damage is most serious, the damaged part in some locations reaches 64% and the pod damage rate reaches 65.8% , Resulting in a serious decline in the rate of seed setting and seed quality, exacerbating its endangered degree.Grey spot moth control can be used artificial cocoon, biological control, chemical control and other methods.Salter green about 2m height shrubs, plant dispersion, The artificial removal of cocoon method is better, and harmless to humans and animals.Environmental temperature and humidity on the growth and survival of larvae have a significant impact.