How to control the soft rot of mustard by withering leaves and rotting roots

Mustard soft rot is a bacterial disease. In the early stage of the disease, the leaves wilted and drooped, and it was obvious at noon on a sunny day. the base of the petiole and the pith of the rhizome of mustard were completely rotten, full of light grayish brown, sticky substance, and foul odor. finally, the base of the stem rotted into a hole, and when serious, the whole plant died. The prevention and control methods are as follows:

Mustard soft rot

(1) good stubble: mustard rotation with Gramineae crops, not continuous cropping with cruciferous crops.

(2) good farming should be done: first, the land preparation should be flat to avoid uneven border surface; second, the chamber ditch should be deep, reaching 25~30cm (ditch width 40cm); and the third border should be high, above 30cm.

(3) take good care of the water off: for mustard pipe water, the watering method should be used to resist drought to avoid diseases caused by flood irrigation and flood irrigation.

(4) good fertilizer application: formula fertilizer application method to avoid man-made diseases caused by excessive application of nitrogen fertilizer.

(5) take good control of the three major pests, such as underground pests, borer pests and foliar pests, so as to prevent insect damage and reduce the probability of pathogen invasion.

(6) good drug use: mustard is the best in the early stage of the disease. In addition to removing the diseased plants and destroying them centrally, a small amount of lime should be sprinkled around the disease points for disinfection.