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针对黑斑病的传播途径,病菌存活时间,甘薯在窖藏、育苗和大田生长各阶段均被侵染危害的特点,为从根本上控制黑斑病的发生,我县改过去对甘薯某一阶段的防治为坚持用多菌灵从窖藏、育苗到大田栽插系统进行防治。这样既防止了因黑斑病造成的烂窖、烂床和大田死苗、坏薯,又防止了黑斑病菌的传播、浸染和繁殖,对减少和消灭菌原起到积极作用,从而达到根本防治黑斑病的目的。由于此项技术较
For the spread of melasma pathogen survival time, sweet potatoes in the cellar, nursery and field growth stages are infected with the characteristics of infection, in order to fundamentally control the occurrence of black spot, my county changed the past to a certain stage of sweet potato The prevention and control to adhere to carbendazim from cellar, nursery to field planting system for prevention and treatment. This not only prevents the black spot caused by rotten cellar, rotten beds and field dead seedlings, bad potato, but also to prevent the spread of black spot pathogens, dissemination and reproduction, to reduce and eliminate bacteria play a positive role, so as to achieve the fundamental The purpose of controlling black spot disease. Because of this technology