大造桥虫(Aseotis selenaria diarnriaHübner)属鳞翅目尺蛾科大造桥虫长江流域亚种,为食叶害虫,为害棉花、豆类、花生等农作物,并为害漆树、黄檀等树,是农业大害虫。现发现其扩大危害水杉等树木。一、发生与为害近几年,我县部分地方的水杉曾发现过大造桥虫为害,因为害不重,未引起重视,今年九月下旬,我县三台林场(位于汉江平原棉产区)的水杉遭到了 A large number of bridge bugs (Aseotis selenaria diarnria Hübner) Lepidoptera is a subspecies of the moth bridge Daocheng Chang subspecies of the Yangtze River valley, as leaf pests, damage to cotton, beans, peanuts and other crops, and pest tree, sandalwood and other trees, is agricultural Pests. It is now found to expand its damage to trees such as Metasequoia. First, the occurrence and damage In recent years, my county in some parts of the metamorphosis has found too large bridge insect damage, because the harm is not heavy, did not pay attention, in late September this year, my county three forest farm (located in the Hanjiang Plain cotton area) Metasequoia was encountered