樗蚕,又名鸟柏樗蚕蛾,主要分布于东北、山东、江浙、两广等地。近两年来,我省开始发现樗蚕,且其危害状况非常严重。它的主要寄主是臭椿,第二代幼虫也为害枣树榆树和杏树。在椿树和枣树生长季节里,可将叶片全部吃光。此外,还危害冬青、法国梧桐、核桃、枫杨、刺槐、花椒、泡桐等。一、幼虫特征。成熟幼虫体长55～60毫米,青绿色,被有白粉,各体节的亚背线、气 Silkworm, also known as the bird cypress cyst moth, mainly distributed in the northeast, Shandong, Jiangsu and Zhejiang, Guangdong and Guangxi and other places. In the past two years, our province began to find the silkworm, and its harm is very serious. Its main host is Ailanthus altissima, the second generation larvae are also harmful jujube trees and almond trees. In the spring and jujube tree growth season, you can eat all the leaves. In addition, also endanger the holly, sycamore, walnut, maple, acacia, pepper, paulownia and so on. First, larval characteristics. Mature larvae body length 55 ~ 60 mm, turquoise, was white powder, the various sections of the sub-top line, gas