报告题目：Research on switching systems with resistance development in integrated pest management
报告人：刘兵 教授
报告时间：2025年11月28日 15：00-16：00
报告地点：四教308
报告摘要：
Considering that the amount of natural enemies released at fixed times and under limited resources depends on the number of existing natural enemies, the predation rate function and conversion rate of natural enemies on pests are different at different time periods with and without the use of pesticides, and long-term repeated use of the same pesticide can cause pests to develop physiological resistance and behavioral resistance, in this talk, we establish an integrated pest management switching model with pesticides resistance and limited resources of natural enemies. The existence of pest-extinction periodic solution and the pest-extinction threshold are obtained through theoretical analysis. Numerical simulation results indicate that the development of the physiological and behavioral resistance of the pest population ultimately leads to outbreaks of pest populations. If only physiological resistance is considered, the estimated outbreak time of pest populations will be delayed and their size will be underestimated. If only behavioral resistance is considered, the estimated outbreak time of pests will be advanced. Further, elastic releasing natural enemies and three rotating pesticide strategies to control pests are proposed. Finally, the effects of the frequency of pesticide spraying, the non-instantaneous killing efficiency rate of pesticide to sensitive pests, and the start applied time of pesticide within a pest control cycle on the pest-extinction threshold are presented.
个人简介：刘兵，鞍山师范学院数学学院院长、三级教授、辽宁科技大学博士生导师、辽宁省“百千万人才工程”百人层次人选，辽宁省教学名师，辽宁省青年科技奖获得者，鞍山市首批突出贡献专家，鞍山市“钢都英才计划”C类地方领军人才。2004年获中国科学院数学与系统科学研究院博士学位，主要研究方向为生物数学和数学教育。目前为中国生物数学会常务理事，国家自然科学基金同行评议专家。在国内外学术期刊发表论文100余篇，其中SCI检索60余篇；主持国家自然科学基金面上项目4项，入选辽宁省高等学校优秀人才支持计划项目。获辽宁省自然科学奖三等奖1项。