一种实蝇营养型诱剂对西瓜实蝇类害虫诱集防治效果初报

Effect of a novel nutrition attractant on fruit flies in the watermelon field

实蝇是西瓜生产中害虫防治的重点与难点，目前诱集防治是其主要的防治方法。试验结果表明，西瓜田中实蝇类害虫优势种为桔小实蝇约60％，其次为瓜实蝇；新型营养型诱剂实蝇克（含0．05％N维菌素）以1～10倍清水拌匀能有效诱集各种实蝇，每隔7d换药1次，连续换药2次，42d后对西瓜的保护作用达80％以上，效果优于生产中常用的物理粘杀剂，可满足西瓜生产中实蝇防治的需要。

The control of fruit fly is the key and difficulty in the watermelon plantation management and the trap by sex or nutrition attraetant still is the most important method against it currently. The dominant species of fruit fly in the watermelon field was Bactrocera dorsalis which accounted for about 60% and B.cucurbitae followed, according to the investigation presented in this paper. A novel nutrition attractant named Shiyingke contained 0.05% abamectin could trap various fruit flies effectively by 1-10 times diluents and got the effectiveness more than 80% after 42d treatment under the conditions of change twice the nutrition attractant every 7 days consecutively, which is superior to the physical adhesives commonly used in watermelon plantation. All these results indicated that the nutrition attractant Shiyingke could meet the requirement for control fruit fly and should be deserved to development further.