Integrated Pest Management Strategies for Approximately Optimal Control of Corn Rootworm and Soybean Cyst Nematode
用动态规划模型为伊利诺伊州玉米根虫和大豆胞囊线虫寻找近似最优管理策略，决策包括不处理、使用杀虫剂、轮作等，对农业经济学家和农学家有用。
Abstract A dynamic programming model is used to determine approximately optimal management strategies for control of corn rootworm and soybean cyst nematode in Illinois. Decision alternatives for rootworm control include nontreatment, application of a soil insecticide, and rotation to soybeans. Alternatives for cyst nematode control are nontreatment, soil nematicide, resistant cultivars, and rotation to corn. State variables in the dynamic programming model are infestation levels of both pests, previous land use decisions, and expected product prices.