论文部分内容阅读
近年我国农田有害生物暴发性灾害发生频率呈不断上升趋势,已成为制约农业高产、优质、高效益持续发展的主导因素之一。迁飞性害虫大量迁入降落、生态环境的破坏、生物多样性的降低、自然因素的不正常变化、预测和防治技术的滞后以及有害生物的入侵是导致农田有害生物暴发性害灾频发的因素。改进农田有害生物灾害预测技术、保护和改良农田生态系统、提高控制农田有害生物灾害的技术水平、加强植物检疫是控制农田有害生物暴发性灾害的途径。
In recent years, the frequency of the outbreak of pest in farmland in our country has been on an upward trend and has become one of the main factors restricting the sustainable development of agriculture with high yield, high quality and high benefit. A large number of migratory pests moved into landings, the destruction of ecological environment, the reduction of biodiversity, abnormal changes of natural factors, the lagging of prediction and control technologies and the invasion of pests were the frequent causes of cropland pest outbreaks factor. Improve the prediction technology of cropland pest disaster, protect and improve farmland ecosystem, improve the technical level of controlling cropland pest disaster, and strengthen phytosanitary measures to control the outbreak of crop pests.