性诱剂对热区草地贪夜蛾的诱捕效果

Effect of Sex Attractants on Trapping of Spodoptera frugiperda in Tropical Regions of China

为了掌握热带地区草地贪夜蛾成虫的发生动态,为草地贪夜蛾监测与防控提供参考,评价了‘纽康’‘中捷’‘百乐宝’和‘英格尔’4种草地贪夜蛾毛细管性诱剂诱芯的田间诱捕效果,并对船型和桶型诱捕器和设置高度对诱捕效果的影响进行了研究。结果表明:4种诱芯中,‘英格尔’诱芯日均诱蛾量达9.33头,显著高于其他3种诱芯;船型诱捕器和桶型诱捕器日均诱蛾量无显著差异,但桶型诱捕的最大日诱蛾量16.76头,显著高于船型诱捕器;诱捕器悬挂高度会影响诱捕效果,玉米苗期悬挂1 m日诱蛾量较大,喇叭口期和抽雄期悬挂1.5 m诱蛾量较大。

To understand the occurrence dynamics of the adults of Spodoptera frugiperda in tropical areas and provide reference for monitoring and control of S.frugiperda in tropical regions of China,4 pheromone lures containing sex pheromone attractants were tested to determine their trapping effects on S.frugiperda,and the effects of different types and hanging height of traps on the trapping of S.frugiperda were also analyzed.The results showed that among the 4 lures,the lure YGE trapped 9.33 moths of S.frugiperda by average,which was significantly higher than that of the other three lures.There was no significant difference in trapping effect between boat-shaped traps and barrel-shaped traps,but the maximum number of moths trapped by the barrel-shaped traps was 16.76,which was significantly higher than that of the boatshaped traps.The hanging height of the traps in the corn field affected the trapping effect.The traps hanging 1m high above the ground in the corn field at the seedling stage had a higher catch number of moths,while the traps hanging 1.5m higher in the corn field at the corn big bell period(corn stage between the jointing and tasseling stages)and the tasseling stage had a higher catch number of moths.