灯光和杨树枝把诱集棉铃虫成虫效果的比较

目的]灯光和杨树枝把诱集棉铃虫成虫是我国监测和防治棉田棉铃虫两种最普遍的方法,比较两者诱集效率.方法]2008～2009年,在新疆奎屯垦区124团4 084 hm2棉田的景观尺度上,监测了灯光和杨树枝把两种诱集方法诱蛾数量.结果]比较平均单诱集源5～8月诱蛾总数,两种方法诱蛾数量呈正线性相关;在长时间跨度和大景观尺度上两种方法诱蛾效果均较稳定,均能较准确反映棉铃虫发生动态;但灯光诱蛾效率显著高于杨树枝把,平均诱蛾数量为杨树枝把的8.6倍,差异达极显著水平(P<0.01).结论]综合考虑实际使用及经济成本.使用灯光诱集棉铃虫进行预测预报和防治更为标准和有效.

Comparison of Lights and Capture Efficiency of Popular Branch Bundles for Capturing Moths of Cotton Bollworm (Helicoverpa armigera)

【Objective】Linghts and branch bundles are two common methods to control filed population of cotton bollworms in China.To highlight the efficiency of lights and branch bundles for capturing moths of cotton bollworm,(Helicoverpa armigera).【Method】A comparative experiment was conducted to monitor the number of the cotton bollworms captured by lights and branch bundles from 2008 to 2009.【Result】The results indicated that there were positive correlations between light bundle and branch bundle for capturing moths of cotton bollworm in 2008.The efficiency of lights was significantly higher than that of bundles,and captures of lights were 8.6 times more than branch bundles(P<0.01).【Conclusion】The method for capturing moths of cotton bollworm with lights is more efficient,compared with that for capturing moths of cotton bollowm.