缨小蜂对颜色的选择性和粘卡技术的应用研究

Color preference of Anagrus spp. and application of sticky traps

本文比较了 7种颜色的粘卡 ,在茭白田中对飞虱天敌缨小蜂 (Anagrus spp.)的诱捕能力 ,结果表明 ,黄色粘卡对缨小蜂的诱捕量显著高于其它颜色的粘卡。缨小蜂对颜色的嗜好顺序为黄色 >蓝色 >蓝绿色 >绿色 >白色 >红色 >黑色。黄色粘卡在离地面 4 0 cm、70 cm、10 0 cm、130 cm和 16 0 cm5个高度上 ,以 70 cm和10 0 cm高度捕获的缨小蜂最多。黄色粘卡对缨小蜂的诱捕量在东、南、西、北四个方向差异不显著。一天中的不同时间段里 ,黄色粘卡所诱捕到的缨小蜂量以上午 6 :0 0至 9:0

Experiments were conducted to determine the preference of Anagrus spp. to color, height, direction in Zizania caduciflora field. The number of Anagrus trapped by various color sticky traps was compared, it showed that the yellow trap captured a significantly higher number of Anagrus . A significantly higher number of Anagrus was found at 70cm and 100cm height while yellow sticky traps were placed at 40, 70, 100, 130 and 160cm height in Zizania field respectively. There was no difference among the number of Anagrus captured by yellow sticky traps placed towards east , south , north and west directions.The yellow sticky trap captured the most Anagrus during 6:00am-9:00am.