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本文用计算机模型分析及评价了昆虫抗药性的三种治理策略:顺序轮用,“高杀死”策略及棋盘式用药。假设昆虫具有一定的生物学特性:如抗性为单基因,单抗性,抗性基因为半显性,两性生殖,昆虫有扩散习性,感性系在不施药情况下有微弱的适应优势等。分析了用不同剂量造成的不同的死亡率,不同的反选择作用,不同的基因稀释作用等情况对三个策略的影响。结果显示出,在这些情况下,用3—5种杀虫剂隔代顺序轮用加上微弱的反选择作用是最为有效的。“高杀死”策略加上一定的稀释作用也极为有效。棋盘式用药在特殊情况下才有用。
In this paper, we analyzed and evaluated three strategies of insect resistance by using computer models: sequential rotation, “high kill” strategy and checkerboard medication. Assuming insects have certain biological characteristics: such as resistance to a single gene, monoclonal antibody, resistance gene is semi-dominant, bisexual reproduction, insects have diffuse habits, sensory lines in the case of no application of weak adaptability, etc. . The effects of different dosages of different mortality rates, different anti-selection effects and different gene dilution effects on the three strategies were analyzed. The results show that in these cases it is most effective to use 3-5 insecticides instead of sequential rotations with a weak anti-selection effect. “High kill” strategy with a certain dilution effect is also extremely effective. Checkerboard medication is only useful in exceptional circumstances.