White rust of cabbage

White rust is one of the major diseases on Chinese cabbage. White rust mainly damages the leaves. On the front of the leaves, the lesions are chlorotic dots at the beginning, the edges are not clear, and later develop into yellow lesions, and finally brown necrosis. On the back of the leaves, a slightly raised, whiteish-to-circular to irregularly shaped ecchymosis, the spore sacs of germs, is typical of white rust. The occurrence of white rust affects the yield and quality of Chinese cabbage.

Control methods:

1. Dispose of the sick and residual body in time after harvest, concentrate burning and deep burial, and reduce the source of field bacteria;

2. Serious disease fields and non-cruciferous vegetables rotation for 2-3 years;

3, to strengthen fertilizer management and rational close planting. Apply basal fertilizer, top-dressing, drainage, and reduce the humidity in the field.

4, the early onset of chemical control in a timely manner, available 25% metalaxyl 1000 times or 64% antiviral 500 times, spray once every 7-10 days, and even spray 2-3 times.

Waist Massager

Waist massager

Waist massager

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