金纹细蛾的生物学特性及防治研究

金纹细蛾在河北冀东地区一年发生 5代 ,以蛹越冬 ,主要以幼虫潜食植物叶肉为害。各代成虫发生盛期分别为 :越冬代 4月 15～ 18日 ;第一代 5月 2 3～ 2 8日 ;第二代 6月 2 2～ 7月 2日 ;第三代 7月 2 0日～ 8月5日 ;第四代 8月 16日～ 9月 4日。利用性诱剂防治金纹细蛾效果显著 ,5个诱扑器共诱雄虫 2 584 9头。利用树干注射器注射 4 0倍速灭杀丁防治效果达 53%。

THE BIOLOGICAL CHARCTERISTIC AND NON-ENVIRONOMENTAL POLLUTION OF LITHOCOLLETIS RINGONIELLA MATS AND CONTROL

Lithocolletis ringoniella naliuts mainly harms Mats plants. They are widespread all over the country. Their harm is gradually becoming more serious on a daily basis. They reproduce five times a year in the eastern region of Hebei Province. Their pupae live through the winter and the larvae causes the most damage by eating the mesophyll. The reproductive times of each generation is as follows: the winter or First generation April 15 to 18, Second generation May 23 to 28, Third June 22 to July 2, Forth generation July 20 to August 5, Fifth generation August 16 to September 4. A pharmaceutical lure is used to trap Lithoclletis ringoniella. The result is notable, as five lures trap a total of 25 849 male insects. Forty times sumicin are used for trunk injection top control aphid Red spider has definite controlling effect on Lithoclletis ringoniella naliuts, as the death rate of larvae is 53 percent. This "lure" method does not harm the environment or the insect's natural predators.