近年我县法国梧桐遭到了毒蛾的危害。该虫为鳞翅目,毒蛾科,古毒蛾Orgyia sp。据-一九八二年在黎平县城调查法国梧桐受害株率达97.2％,平均虫口密度为1372.5头,多的达万头以上。被害树重者叶片全被食光,只剩叶脉,被害树下舖满了虫粪,既影响了生长又污染了环境。在进行防治的同时,对该虫作了初步观察,现将结果介绍如下。 In recent years, my county sycamore was poisoned by moths. The insects Lepidoptera, moth family, ancient moth Orgyia sp. According to a survey in 1982 in Liping County, the rate of parasitic diseases in France reached 97.2%, with an average population of 1372.5 insect swarms, with an average of more than 10 million heads. Victims tree heavy leaves were all eaten light, leaving only the veins, the tree was covered with insect manure, both affected the growth and pollution of the environment. In the prevention and control at the same time, made a preliminary observation of the worm, the results are as follows.