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甘薯茎线虫病,农民称“糠梆子”、“糠心病”等,近年在河北省甘薯产区发生普遍、局部地方危害严重,应引起重视。此病由线虫所致,在显微镜下能看见线虫,虫体细长透明,其形态与人体内的蛔虫相似。甘薯茎线虫病传播途径多,可通过带病种薯、秧苗进行远距离传播,在病区主要靠病田土壤及带病材料沤制的肥料传病,如不注意防治,土壤中的线虫数量逐年增大,则往往造成恶性循环。对此病,
Sweet potato stem nematodes, peasants called “chaff”, “heart disease” and so on, in recent years occurred in sweet potato areas in Hebei Province widespread, serious damage in some places, deserves attention. The disease caused by nematodes, nematodes can be seen under a microscope, parasites slender and transparent, its shape and the body of roundworms similar. Sweet potato stalk nematode disease spread more, through the disease with seed, seedlings for long-distance transmission in the ward mainly by the soil and sick sickness of the system of fertilizer disease, if not pay attention to the number of nematodes in the soil Increasing year by year, it often leads to a vicious cycle. On this disease,