论文部分内容阅读
长期频繁地使用某种杀虫剂,往往使害虫产生抗药性,要防治这种有抗性的害虫,必须提高用药量。这样做的结果,不但会破坏害虫与天敌之间的种群平衡,引起害虫的再猖獗或导致某些次要害虫上升为主要害虫,而且还会带来残毒和环境污染等一系列问题。因此,如何防止和延缓害虫产生抗药性,对保证农业稳产高产和保护环境具有很重要的意义。本文就上述诸情况作一综述,以供防治上的参考。
Long-term frequent use of certain insecticides, tend to produce pest resistance, to control this resistant pests, we must increase the dosage. The result of this will not only destroy the population balance between pests and natural enemies, cause the pests to re-ramp or cause some minor pests to rise as the major pests, but also cause a series of problems such as residual poison and environmental pollution. Therefore, how to prevent and delay the emergence of drug resistance of pests is of great significance to ensure stable and high-yield agriculture and protect the environment. This article reviews the above situations for reference on prevention and treatment.