小叶杨枝把在田间对棉铃虫的诱集作用

Attraction of the Cotton Boll Worm,Helicoverpa armigera(Hübner),to Poplar Bundles Made of Populus simonii in the Field

研究了小叶杨枝把、黑光灯和性诱剂在田间对棉铃虫Helicoverpa armigera(Hübner)的诱集作用.试验结果表明,小叶杨枝把在田间对棉铃虫成虫有较强的诱集作用,但诱集效率没有黑光灯高,小叶杨枝把所诱雌雄蛾量基本相同.杨枝把之间的摆放距离对诱蛾有影响,在5～40m范围内,随着距离的增大,单把杨枝把平均诱蛾量增加,但总体呈减小趋势.另外,还观察了棉铃虫成虫在夜间的活动规律,在新疆石河子垦区24:00～4:00时段内是棉铃虫成虫活动最频繁的时间。

The attraction of the cotton boll worm, Helicoverpa armigera （Hubner）, to poplar bundles made of branches of the Chinese Populus simonii, the black light and sex pheromone bait were assayed in the field. The results showed that these bundles were attractive to H. armigera and the numbers of the female and male moths attracted were mainly the same. However, the traction effect of poplar bundles was lower than black light. The distance of the poplar bundles was influence to the number of the attracted moth. Between the distance of 5-40 meters as the distance is longer the number of trapped moths by signal branches was increased, but the total number was reduced. Besides, at light, between the time 24：00-4：00 cotton boll worm exercise actively.