Cabbage tubercle disease, the pathogen is the flagellin of the flagellin subdivision. The pathogens survived with the dormant sporangia in the soil. The optimum temperature is 18-25 degrees, and the optimum soil water capacity is 70%, the optimum pH is 5.4-6.5, and the pathogens are mainly spread through susceptible seedlings or contaminated soil. The field is spread through rainwater, irrigation water, nematodes, insect farm implements, and human and livestock.
The disease mainly damages the roots of the underground. The stimuli caused by the bacteria cause the cells to proliferate and increase, and tumors of different sizes are formed. The initial part of the ground is not obvious, and when the disease progresses further, it usually shows a lack of fertilizer, while the leaves wilted to death.
Can be taken to implement quarantine, paddy crop rotation and other methods to prevent, after planting with 1% lime water as the rooting water and continue to inflict 1-2 times after the survival; growing season with a mycorrhizal eliminate a package of water 150 Wetness can also prevent this disease.
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