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~(60)Coγ射线辐照蚕蛆蝇(Exorista sorbillans Wied.)后期蛹,剂量为6000伦,获得90%以上的不育效果。用300微居里/毫升的~(181)Ⅰ-KI 蜜糖液饲喂不育蝇24小时,平均每头蝇的标记剂量为17.6±4.2微伦/小时(本底为10—12微伦/小时),可在30厘米内用 FD—71型微伦计在野外测出。释放标记不育蚕蛆蝇后,在距释放中心400米～2000米的不同距离内放置五龄蚕诱蝇前来产卵,测知其迁飞距离约2000米半径,其中有73.2～74.4%的标记蝇分布在离蚕房400米的半径内,此习性有利于发挥不育蝇的防治作用。释放标记不育蝇,通过同位素稀释法估计田间蝇口密度的消长,表明连续大量释放不育蝇对控制蝇口密度及降低蝇卵孵化率有不可低估的作用。
~ (60) Co γ-rays irradiate the late pupae of Exorista sorbillans Wied. The dose was 6000 lux, and the sterility was over 90%. Infertile flies were fed with ~ (181) I-KI honey solution at 300 microCi / mL for 24 hours with an average of 17.6 ± 4.2 μF per hour for flies (background is 10-12 μL / H), measured in the field within 30 cm using the FD-71 micronimeter. After releasing the labeled sterile silkworm maggot flies, the fifth instar silkworm louse was placed at different distances of 400-2000 m from the release center to lay eggs, and the migration distance was about 2000 m, of which 73.2-74.4% Of the mark flies distributed within a radius of 400 meters away from the silkworm house, this habit is conducive to play a role in the prevention and treatment of infertility. Sterile insects were released and isotope dilution method was used to estimate the growth and decline of the density of flies in the field, indicating that continuous large-scale release of sterility could not be underestimated in controlling the density of flies and the hatching rate of flies.