黄、蓝色板对豆大蓟马的诱集效果比较

摘要

With the expanding of winter planting cowpea areas in Hainan, cowpea flower thrips became the main pests in the winter planting cowpea and chemical control of cowpea flower thrips became the main factor that affects cowpea product quality and safety. In order to clarify the color trapping effect, yellow and blue sticky palettes were used in different time and different height for trapping. The results showed the blue color caught the most cowpea flower thrips. It was 236.50±42.38 and 31.50±8.23 averagely on per blue and yellow card respectively in 13 days. The greatest amount of cowpea flower thrips were trapped between 10∶00~14∶00 in traps placed 10cm above cowpea. It was 105.00±19.85 and 14.25±3.97 averagely on per blue and yellow card respectively.%随着海南冬种豇豆面积的不断扩大，豆大蓟马成为海南冬种豇豆的主要害虫，对豆大蓟马的化学防治成为严重影响豇豆产品质量安全的主要因素。为了明确黄、蓝色板对豆大蓟马的诱集效果，本试验在豇豆地中使用黄、蓝两种色板设置不同的高度对田间豆大蓟马进行诱集。结果表明：蓝板对豆大蓟马的诱集效果高于黄板，在距离豇豆顶部10 cm时，蓝板13 d的诱虫量为236.50±42.38头/板，黄板为31.50±8.23头/板；蓝板和黄板均以距离豇豆顶部<10 cm高度的诱虫量最大，随着挂板高度的增加诱虫量降低；蓝板和黄板都以10∶00～14∶00时间段的诱虫量最大，分别为105.00±19.85头/板和14.25±3.97头/板。