二化螟性诱剂和诱盆设置技术的研究

A technique of sex pheromone attractants and traps against the male moth of Chilo suppressalis.

通过对二化螟性诱剂水盆诱捕器及其设置高度比较研究，结果表明：诱捕器的口径大小以２４ｃｍ为佳，绿色水盆的诱蛾量比其他颜色的要大；在越冬代诱捕中，诱盆的高度在２０ｃｍ左右效果较好；性诱剂离水面的高度对二化螟雄蛾的诱捕有一定影响，其高度在０５～１０ｃｍ的诱蛾量最高。

The sex pheromone attractants against the male moth of rice stem borer Chilo suppressalis Walker were studied in China. The comparative tests of various water traps using two sex pheromone components Z 11 16∶Ald and Z 13 18∶Ald were conducted in the paddy fields. The results showed that the optimal diameter of trap basin was 24 cm and green trap attracted significantly more male moths than other color traps did. The suitable height of water traps against the overwintering generation of C. suppressalis was 20 cm over the ground. The best distance between the attractant and the surface of water was 0 5-1 0 cm.