三化螟种群系统的最优管理决策  

OPTIMAL MANAGEMENT DECISION ON THE POPULATION LIFE SYSTEM OF PADDY STEM BORER, TRYPORYZA INCERTULAS

作　　者：张文庆[1] 古德祥[1] 蒲蛰龙[1] 

机构地区：[1]中山大学昆虫学研究所

出　　处：《昆虫学报》1995年第3期296-304,共9页Acta Entomologica Sinica

基　　金：国家"七.五"重点攻关

摘　　要：以三化螟ＴｒｙＰｏｒｙｚａｉｎｃｅｒｔｕｌａｓ（Ｗａｌｋｅｒ）种群动态模型和水稻产量损失预测模型为基础，根据水稻插值期、品种抗性、保护利用自然天敌和杀虫剂多次使用等控制措施以及它们的各种不同组合对该虫种群动态、水稻产量损失率和净收益的影响，以净收益最大为目标函数，研究三化螟种群的最优管理决策。其中，对昆虫种群动态模拟方法作了一点改进，它综合了前人所提出的种群动态模型的优点。建立的系统模型能够提供包括农业防治、生物防治和化学防治措施在内的。对三化螟种群实施有效管理的最优决策方案。in this paper, the method of insect population dynamic simulation has been improved, which integrates some advantages of population models that have been published. Based on the population simulation model of paddy stem borer Tryporyza incertulat (Walker) (PSB) and yield loss rate forecasting model o'f rice crop, the optimal management decision problem of PSB population was studied with the aim to obtain maximal net revenue. 'the net revenue was influenced by several control strategies and their combinations sue,h as adjusting the time of seedling transplantation, using resistant rice varieties, protecting and utilizing natural enemies and application of insecticides. The system model can' provide on optimal decision strategy to effectively control PSB. population,which contAins measures of agricultural control, biological control and chemical cohtrol.

关 键 词：三化螟 种群系统 最优管理决策 水稻害虫 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]