丽花蓟马对不同颜色的趋性及田间诱杀效果研究

采用7种颜色粘虫色板对丽花蓟马进行诱杀试验,从中筛选出诱杀效果较佳的4种颜色粘虫板,然后,设置不同高度粘虫板对丽花蓟马进行田间诱杀效果的对比试验,探索丽花蓟马对不同颜色的趋性以及不同高度粘虫色板对丽花蓟马的防治效果。结果显示,丽花蓟马对7种颜色粘虫板的正趋性由强到弱依次为:蓝色>黄色>白色>浅蓝色>粉红色>青色>深红色;丽花蓟马对蓝色、黄色、白色和浅蓝色粘虫板具有较强的正趋性,这4种颜色粘虫板最佳挂放高度分别为高于山银花花蕾顶端10～30、10～20、20～40cm和20～30cm,其中高于花蕾顶端10～30cm的蓝色粘虫板诱杀丽花蓟马数量较多。

Taxis of Frankliniella intonsa on Lonicera confusa to different colors and field control effect of sticky cards

The taxis of Frankliniella intonsa on Lonicera confusa to different colors and the field control effect of sticky cards were studied, aiming to provide reference for scientific control. Firstly, four colors with good trapping effect were chosen from the seven types of color sticky cards hung at the same height, and the contrast tests were conducted by putting the sticky cards in these four colors at different heights. The results showed that the positive taxis of F. intonsa to different colors decreased in the following order from strong to weak: blue, yellow, white, light blue, pink, cyan and crimson. Among the seven color sticky cards, the blue, yellow, white and light blue ones were of stronger taxis, and the optimal hanging heights were 10-30 cm, 10-20 cm, 20-40 cm and 20-30 cm above the top of the buds, respectively. Among the seven color sticky cards, better trapping effects were achieved with the blue sticky cards being placed 10-30 cm above the top of the buds.