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病虫害的防控是作物生产管理的重要内容,是高产优质的保证。病虫害防控要贯彻以防为主的原则,治虫不见虫,治病不见病,必须掌握病虫害的发生规律,关键环节防治才能经济有效。病虫害防控原则是预防为主,农业措施优先。运用抗病品种、繁育健康种苗、加强植物检疫、清洁耕作、物理诱杀等控制病虫害发生,关键环节简化用药防治,减少化学物品投入,确保产品安全。一、甘薯主要病虫害分类甘薯主要病害有甘薯根腐病、甘薯茎线虫
Prevention and control of pests and diseases is an important part of crop production and management and a guarantee of high yield and quality. Prevention and control of pests and diseases should be carried out in accordance with the principle of prevention, pest control insects do not see the disease, we must master the occurrence of pests and diseases, the key aspects of prevention and control can be cost-effective. Prevention and control of pests and diseases is the principle of prevention and priority is given to agricultural measures. The use of disease-resistant varieties, breeding healthy seedlings, strengthening phytosanitary, clean farming, physical trapping control of pests and diseases, the key aspects of the prevention and control of drugs to reduce the chemical inputs to ensure product safety. First, the main pests and diseases classification sweet potato sweet potato root rot disease, sweet potato stem nematode