不同颜色色板对春玉米田灰飞虱的诱集效果

Trapping Effect of Different Colored Sticky Cards on Attracting Laodelphax striatellus in Spring Corn Fields

利用黄色、白色、红色、蓝色、绿色和浅绿色6种不同颜色色板对春玉米田灰飞虱的诱集效果进行了研究。结果表明,灰飞虱对黄色板趋性最大,与其它5种色板存在极显著差异(P<0.01);在整个调查期间,灰飞虱的虫量以雄虫居多,占灰飞虱总量的72.49%,高峰期雌雄比为0.44∶1;利用黄板诱集是进行灰飞虱种群监测和防治的有效手段。

The trapping effect of six types of colored sticky cards, including yellow, white, red, blue, green and light-green ones, on small brown planthopper （Laodelphax striatellus） was investigated in spring corn fields. The small brown planthopper significantly preferred yellow cards to others （ P 〈 0.01 ）. During the survey, the number of male small brown planthopper was always larger, accounting for 72.49% of the total. In the thriving occurrence periods, the sex ratio of the females to males was 0.44： 1. All the results showed that the yellow sticky card was the most effective one for monitoring and controlling the small brown planthopper.