Potato black shank belongs to bacterial soft rot disease and infects stems and tubers. Seed potatoes can be infested from the late stage of germination to late growth. The most obvious symptom is that the diseased plant is obviously short and the new leaf yellows less
curly. The base and root of the neck become black and rot. Black shank disease mainly spreads through the seed potato, which penetrates through the wound. Its incidence is closely related to temperature and humidity, high temperature is conducive to the onset of disease, soil is too easy to lead when wet
A large number of potato rots cause serious infestation.
Control measures: 1. Seed sowing of disease-free seed potatoes.
2, through the sun can kill germs on seed potatoes.
3, cut seed potatoes with 55% of the enemy by the pine seed pine 0.1% seed dressing, seed dressing when the first of the enemy and a small amount of dry soil or grass ash mix, plus 10 kg of dry soil and mix well, Then and kind
The potatoes are mixed and must be accompanied by sowing.
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