灰茶尺蠖性信息素田间应用技术研究

摘要

Ectropis grisescens Warren is a severe defoliator species that seriously affects the quality and production of tea in China.In order to provide guidance for using sex pheromone of E.grisescens in the field,the effect of sex pheromone dispenser, trap type, height and interval were compared and determined. The results of field trials showed, isoprene septa dispenser was more suitable than silicone septa dispenser and PVC capill ary tubing. Sticky wing trap was the most appropriate trap among five types of traps. Trap set 25 cm above tea plant, and 15 m between interval were determined as the best operational parameters to catch E. grisescens male moth. The results provided scientific basis to develop effective protocols for using the sex pheromone to attract and kill E.grisescens male moth.%灰茶尺蠖是我国茶树重要的食叶害虫,严重影响茶叶的质量和产量.为了给灰茶尺蠖性信息素的田间应用提供指导,本文对其性信息素缓释载体类型、诱捕器类型、诱捕器高度以及使用间距等参数进行了研究.结果显示,灰茶尺蠖性信息素以异戊二烯橡胶塞为缓释载体对灰茶尺蠖雄虫具有最好的引诱效果,效果优于硅胶塞和 PVC毛细管;5种测试诱捕器中,船型诱捕器最适合引诱灰茶尺蠖;当诱捕器置于茶树上部25 cm 时,引诱效果最好;诱捕器保持15 m 的间距时,诱捕效率最高.本研究结果可为灰茶尺蠖性信息素应用于雄虫诱杀提供科学依据.