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美国白蛾往往通过人为方式从疫区传播到非疫区,在新疫点,也往往由于人们不识别而被忽视,直到危害严重时才被发现。如何利用科学的防治方法迅速地将新疫点的美国白蛾扑灭,对控制新疫情的传播蔓延有很重要的意义。 1984年秋,辽阳市弓长岭区汤河乡四方台村发现了美国白蛾新疫情。发生面积360多亩,危害树木8000余株,其中在一株糖槭树上捉到
American white moth usually spreads from the epidemic area to the non-infected area artificially. In the new site, it is often neglected because people do not recognize it, until it is seriously damaged. How to quickly exterminate the new white spot moth through scientific methods of prevention and control is of great significance in controlling the spread of the new epidemic. In the autumn of 1984, a new outbreak of American white moth was discovered in Sifangtai Village, Tanghe Township, Gongchangling District, Liaoyang City. Occurred area of 360 mu, endanger trees more than 8,000 strains, of which caught in a sugar maple tree