西花蓟马成虫在田间对不同颜色的反应

Response of Frankliniella occidentalis Adults to Different Colors in Field

[目的]比较西花蓟马成虫对不同颜色的反应。[方法]采用大棚种植康乃馨与田间种群调查相结合法,将不同种颜色的彩色蜡光纸分别卷成筒状(长10.0 cm、直径4.5 cm),在外面涂上石蜡油后悬挂于植株上方10 cm左右,分别测定了4种单一颜色(蓝色、黄色、紫色、褐色)以及不同比例混合色(蓝色+黄色、蓝色+紫色、黄色+紫色)对西花蓟马成虫的引诱效果。[结果]蓝色对西花蓟马成虫引诱效果最强,显著高于其他3种颜色;黄色、紫色和褐色3种颜色对西花蓟马的引诱效果无显著差异。混合色对西花蓟马成虫的引诱果均显著低于单一蓝色和黄色。利用黄色板监测西花蓟马田间种群动态的准确性要明显优于蓝色色板。[结论]混合色对西花蓟马成虫的引诱效果要明显低于单一颜色。

[ Objective ] The research aimed to compare the response of Frankliniella occidentalis adults to different colors. [ Method ] In the test combining the carnation planting in flower shed and the field investigation, the glazed papers with different colors were rolled into cylindershaped （ length of 10 cm and dia. of 4.5 cm） resp. and hanged 10 cm over plants after paraffin oil was coated on colorful cylinder surface, the attraetant effects of 4 kinds of individual colors （blue, yellow, purple and brown） and mixed colors with different ratio （blue ＋ yellow, blue ＋ purple and yellow ＋ purple） on F. oceidentalis adults were determined resp. [ Result]The blue color was in the strongest attractive effect on F. occidentalis adults, and significantly higher than that of the other three colors. There was no obvious difference on attractive effect on the insects for 3 colors of yellow, purple and brown. The attractive effect of mixed colors on F. occidentalis adults were all significantly lower than that of single blue and yellow. The accuracy of monitoring population dynamics of F. occidentalis in field by using yellow color chips was evidently superior to that of blue ones. [ Conclusion ] The attractive effects of mixed colors on F. occidentalis adults were significantly lower than that of single color.