摘要
在昆虫生态系统中,任何一个组分的变动,都会直接或间接地影响系统的稳定性。化学农药的施入,是改变昆虫生态系统的重要因素。长期以来,不合理的施药曾引起许多不良后果,达不到综合治理之目的。
Improved Weibull's dynamic models are used to simulate the population dynamics of wheat aphids and their natural enemies. Parameters and integrated indices are compared to analyze the effectiveness of different concentrations of rogor oxide in controlling aphids and preserving natural enemies and on wheat yield.The range of rational applying concentrations is determined. The research method has been proven to be simple, practicable and valuable in comprehensive control of insect pests.
出处
《生态学杂志》
CAS
CSCD
北大核心
1992年第2期27-29,共3页
Chinese Journal of Ecology
关键词
动态模型
农药
合理施用
wheat aphid, natural enemy, rogor oxide, dynamic model.
