Symptoms of onset of symptoms of water immersion in the early stages, gradually discolored soft rot, brown mucus, and odor.
The pathogen is Erwaniacarotovora Jones, a bacterium.
The route of infection overwinters the diseased plant residue. During the growing season, it can infect the disease, mainly through rainwater, irrigation water, and underground pests. Intrusion from the wound. After the plants become infected in the spring, they can reproduce a large number of bacteria and become the source of many infections.
Control methods
1, reduce the continuous cropping, pay attention to soil and soil disinfection. Pay attention to drainage, reasonable irrigation. Pay attention to ventilation and keep the plant base dry.
2, do not use the stem as a propagation material.
3. Diseased plants were found to be burned out in time and 20% of lime milk or 50g to 100g of bleaching powder per square meter was used to disinfect the soil.
4. Spray 1:1:100 Bordeaux mixture or 4000 times agricultural streptomycin to the base of the plants in the initial stage. Once every other month, spray 2 or 3 times.
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