A Pest Management Epidemic Model with Time Delay and Stage-Structure

• 作者: Shujing Gao Yujiang Liu Yumin Ding Yun Lan
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: PEST Management STAGE Structure IMPULSIVE System PERMANENCE
• 年，卷（期）: yysxyw_2010,（3）
• 页码范围: 215-221
• 页数: 7页
• 分类号: O1

摘要

In this paper, an SI epidemic model with stage structure is investigated. In this model, impulsive biological control which release infected pest to the field at a fixed time periodically is considered, and obtained the sufficient conditions for the global attractivity of pest-extinction periodic solution and permanence of the system. We also prove that all solutions of the model are uniformly ultimately bounded. The sensitive analysis on the two thresholds and to the changes of the releasing amounts of infected pest is shown by numerical simulations. Our results provide a reliable tactic basis for the practice of pest management.