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应用粉剂药膜法,一种食品级惰性粉——4号粉相应剂量处理赤拟谷盗Tribolium castaneum(Herbst)、烟草甲Lasioderma serricorne(Fabricius)、锯谷盗Oryzaephilus surinamensis(Linnaeus)的卵和1龄幼虫,赤拟谷盗、锯谷盗、烟草甲的卵平均孵化率均在97%以上,处理后卵孵化的1龄幼虫平均死亡率均在96%以上;处理3种害虫的1龄幼虫其平均死亡率均在99%以上。结果表明食品级惰性粉对3种试虫卵的孵化率几乎没有影响,但对其1龄幼虫有较好的防治效果。通过混粮法应用正交试验研究发现,惰性粉剂量和小麦含水量对赤拟谷盗F1代防治效果均有显著影响。当小麦处于安全水分时(含水量12%~14%),100~150 mg/kg 4号粉能有效防治赤拟谷盗F1代。
Application of powder film method, a food-grade inert powder - the corresponding dose of powder 4 Tribolium castaneum Tribolium castaneum (Herbst), tobacco A Lasioderma serricorne (Fabricius), Sawfruit Oryzaephilus surinamensis (Linnaeus) eggs and 1 The average hatching rates of eggs of instar larvae, mimicry, sawtooth, tobacco a were more than 97%, and the average mortality of first-instar larvae hatched after hatching was over 96%. The first instar larvae of three pests The average mortality rate is above 99%. The results showed that the food-grade inert powder had little effect on the hatching rate of eggs of three species, but had good control effect on the first-instar larvae. Orthogonal experiments were conducted to find out that the inert powder dosage and wheat moisture content had a significant effect on the control effect of F1 generation of Tribolium curcuma. When wheat is in safe moisture (moisture content 12% ~ 14%), 100 ~ 150 mg / kg powder 4 can effectively prevent and control the red generation of Turpan F1.