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本文研究了桃小食心虫(Carposina nipponensis Wals.)的染色标记技术和不育成虫在田间的扩散规律。将Sudan Blue 670(Ⅱ)染料加入到桃小食心虫幼虫的人工饲料内染色标记桃小食心虫,试验结果表明:染料浓度500ppm是较适宜的剂量,不仅使其幼虫、蛹、成虫及F_1代卵均匀染上蓝色,而且使精苞也染上浅蓝色,对桃小食心虫也无不良影响。采用释放染色标记虫及性诱剂诱捕技术研究桃小食心虫不育成虫的田间扩散规律,结果表明:不育虫在果园内的运动方向是随机的,80%集中在距释放点100米为半径的环域内,最远距释放中心225米,扩散密度与扩散距离有明显的回归关系,符合模型N=-0.67+402.45/X。
In this paper, we studied the staining of Carposina nipponensis Wals. And the law of the proliferation of sterile adults in the field. Sudan Blue 670 (Ⅱ) dye was added to the artificial diet of peach moth larvae to mark the peach moth. The results showed that the dye concentration of 500ppm was the most suitable dose, which not only made larvae, pupae, adults and F_1 eggs uniform Dyed blue, but also to make fine buds are also infected with light blue, peach moth worms no adverse effects. The results showed that the movement direction of sterile insects in the orchard was random and 80% concentrated in a radius of 100 meters from the release point The distance between the diffusion density and the diffusion distance has obvious regression relationship, which accords with the model N = -0.67 + 402.45 / X.