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本文研究了螟黄赤眼蜂Trichogramma chilonis雌蜂在正常光照和黑暗条件下,对不同颜色瓜叶菊Senecio cruentus花的选择趋性以及不同颜色彩纸对螟黄赤眼蜂寄生能力等的影响,以明确螟黄赤眼蜂对颜色的趋性。结果表明,在正常光照条件下,白色的瓜叶菊花比粉红色、蓝色和紫红色的花更能吸引螟黄赤眼蜂雌蜂,彩纸处理试验结果也基本显示相似。但在黑暗条件下,螟黄赤眼蜂则无明显趋性。通过对选择率和颜色参数的相关性拟合表明螟黄赤眼蜂趋向于亮度高(白色和粉红色)的颜色。因此,在筛选合适的蜜源植物提高天敌控害能力时,花的颜色也应是一项重要的考查指标。
In this paper, the effects of different colors of Trichogramma chilonis female on selective parasitism of Senecio cruentus flower and parasitic ability of Trichogramma chilonis on the parasitism of Trichogramma chilonis were studied under normal light and dark conditions in order to make clear Trichogramma yellow tadpole on the color of the tropism. The results showed that under normal light conditions, the white cineraria chrysanthemum attracts more than the pink, blue and purplish red flowers of the yellow-red-billed wasp, and the results of the colored paper processing also basically show similar results. However, in the dark conditions, Trichogramma yellow tadpole had no obvious tendency. The fitting of the correlation between selectivity and color parameters indicates that the Trichogramma defensifolia tends to have a higher brightness (white and pink) color. Therefore, the color of flowers should also be an important index for screening suitable nectar plants for enhancing the control ability of natural enemies.