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研究了高压汞灯、双波灯、性诱剂和杨树枝把四种诱集源对棉铃虫(Helicoverpa armigera)的诱杀效果及有效半径。结果表明:四者均具有较明显的诱杀作用,其各自的诱杀效果有差异,并与棉铃虫种群数量有关,发生量大的世代或年份,效果较好,反之不明显或较差。综合比较各处理的诱蛾量、百株卵量、幼虫量及其活动态天敌量,发现其诱杀效果的优劣次序为高压汞灯、双波灯、性诱剂、杨树枝把;2种灯的有效诱杀半径约为80~160m,性诱剂约30m,杨树枝把约在10m内,该范围内高压汞灯、双波灯区内的百株卵量比对照分别降低31.7%~33.8%、40.1%~41.5%,性诱剂降低10.7%~21.5%,杨树枝把降低4.8%~14.6%。
The trapping effect and effective radius of high-pressure mercury lamp, dual-wave lamp, sex attractant and poplar branch on Helicoverpa armigera were studied. The results showed that all four had obvious trapping and killing effects, and their trapping and killing effects were different. They were related to the population of the cotton bollworm. The generation of large numbers of generations or years was better, but not obvious or worse. The results showed that the order of attraction and killing were high-pressure mercury lamp, double-wave lamp, sexual attractant and poplar branch. The total amount of lures, The effective decoy radius of the lamp is about 80 ~ 160m, the sexual attractant is about 30m, the poplar branch is about 10m, the number of eggs in the high-pressure mercury lamp and the double-wave lamp area in the range is decreased by 31.7% ~ 33.8 %, 40.1% ~ 41.5%, sex attractant decreased by 10.7% ~ 21.5%, poplar branches reduced by 4.8% ~ 14.6%.