中文摘要：

研究了与害虫管理相关的一类捕食者（益虫）具有脉冲扰动,食饵（害虫）具有化学控制的阶段结构时滞捕食-食饵模型,根据生物资源管理的实际,改进了原有捕食者-食饵模型,得到了害虫灭绝周期解全局吸引和系统持久的充分条件。得出的结论为现实的害虫治理提供了可靠的策略依据。

英文摘要：

A stage-structured delayed pest management predator-prey model with impulsive transmitting on predators（beneficial insect） and chemical control on prey（pests） concern was considered.According to the living resources management＇s reality,improved the predator-prey model,sufficient condition of the global attractivity of pest-exterminate periodic solution and permanence of the system were obtained.The results provide reliable tactical basis for the practical pest management.