资源有限下具有抗药性发展的害虫综合治理切换模型研究  

A Switching Model for Integrated Management of Resistant Developing Pests with Limited Resources

作　　者：金佳妮 齐加齐 刘兵 JIN Jiani;QI Jiaqi;LIU Bing(Department of Mathematics,Liaoning Normal University,Dalian Liaoning 116029,China;School of Mathematics and Information Science,Anshan Normal University,Anshan Liaoning 114007,China)

机构地区：[1]辽宁师范大学数学学院,辽宁大连116029 [2]鞍山师范学院数学与信息科学学院,辽宁鞍山114007

出　　处：《鞍山师范学院学报》2023年第2期7-13,共7页Journal of Anshan Normal University

基　　金：国家自然科学基金项目(12171004).

摘　　要：考虑多次喷洒同一种杀虫剂导致害虫对杀虫剂产生抗药性以及天敌资源的有限性,建立一类资源有限下具有抗药性发展的害虫综合治理切换模型.通过理论分析得到害虫灭绝的阈值条件,再借助数值模拟验证长期使用同一种杀虫剂会使害虫产生抗药性,致使害虫种群不会灭绝,最后得出杀虫剂对害虫的非瞬时杀死率越大,害虫对杀虫剂的抗药性发展得越快的结论.Considering the insecticide resistance caused by multiple spraying of the same insecticide and the limitation of natural enemy resources,a switching model of integrated pest management with resistance development under limited resources was established.The threshold conditions of pest extinction were obtained through theoretical analysis,and then numerical simulation was used to verify that long-term use of the same insecticide would lead to resistance of pests,and eventually the pest population would not be extinct.Finally,it was concluded that the greater the non-instantaneous killing rate of insecticides on pests,the faster the development of insecticide resistance.

关 键 词：害虫综合治理 害虫抗药性发展 害虫灭绝阈值 

分 类 号：O175.1[理学—数学]