杀虫灯与诱集植物联合防控白木香黄野螟效果研究

Evaluation of efficiency of traps baited with frequency trembler grid lamps and trap plants for control Heortia vitessoides infectwed in Aquilaria sinensis

黄野螟是近几年在我国白木香种植区大面积发生的一种食叶性害虫,目前发现其成虫对频振式杀虫灯和开花的蜜源植物具有很强的趋性。该文于黄野螟各代成虫羽化期,调查野外成虫补充营养的蜜源植物种类;同时,在室内采用Y型嗅觉仪测定黄野螟成虫对其嗜食蜜源植物的行为反应;再将频振式杀虫灯悬挂在这些植物附近,评价其诱虫效果。结果显示,黄野螟成虫补充营养的蜜源植物种类诸多。假蒿和檀香是黄野螟成虫嗜食的蜜源植物,将其作为诱集植物与白木香同期、按条带式或棋盘式种植在白木香林间或林缘,种植面积占总种植面积5%~10%,并与频振式杀虫灯联合应用,每盏灯每日可诱杀几百头至上千头黄野螟成虫。由此可见,利用频振式杀虫灯与诱集植物结合是对白木香害虫黄野螟诱集歼灭的双重“诱杀”,是一种实用、高效、生态环保的防治技术。

Heortia vitessoides has been a serious defoliating pest of Aquilaria sinensis forests in recent years. The adults displayed strong tropism to the frequency trembler grid lamps and the nectar source plants. The favorite nectar source plants of H. vitessoides adults as the trap plants and the frequency trembler grid lamps in the integrated management of H. vitessoides were studied in the adult eclosion period through both the laboratory and field. The results showed that Kuhnia rosmarnifolia and Santalum album plants showed strong attraction to the H. vitessoides adults, with significant differences among the different nectar source plants. K. rosmarnifolia and S. album as trap plants with board type of planting area to total planting area of 5% -10%, and the frequency trembler grid lamps trapped significantly more adults of H. vitessoides. These results suggested that the frequency trembler grid lamps and trap plants could play an important role in the integrated management of the pest H. vitessoides of A. sinensis.