How to control eggplant bacterial wilt caused by bacterial wilt

When eggplant was killed, individual leaves or parts of leaves showed drooping at the initial stage, and then gradually extended to the branches of the whole eggplant. It is light green at first, brown and scorched, and the diseased leaves stay on the branches or fall off. Peel off the cortex of the stem and the xylem is brown. This discoloration extends from the root neck to the xylem of the upper branch. The pith in the branches of infected eggplant is mostly rotten and hollow. Squeeze with your hands and ooze milky mucus.

Eggplant bacterial wilt

Occurrence pattern:

Bacterial wilt of eggplant is a disease caused by bacteria. The pathogen overwintered on the remains of diseased plants left in the soil, invaded from the wounds at the root or stem base of eggplant, and spread through Rain Water, irrigation water, farm tools, livestock and so on. The hot and humid environment is beneficial to the occurrence of eggplant bacterial wilt. When it clears up after rain and the temperature rises, the disease occurs seriously. The disease was serious in continuous cropping and slightly acidic soil.

Prevention and control measures:

(1) rotation with onions and garlic.

(2) eggplant varieties resistant to bacterial wilt were selected.

(3) grafting to prevent disease.

(4) selecting disease-free soil to raise seedlings, applying 100kg lime per mu of planting land, adjusting the soil to alkaline, high border cultivation, doing a good job of field drainage and avoiding flood irrigation. Apply sufficient basic fertilizer, apply nitrogen and potassium fertilizer during the growing period, stop mid-tillage in the middle and later stages of growth, in order to prevent root damage, remove the diseased and residual plants of eggplant in time after harvest and burn them centrally.

(5) in the early stage of the disease, the diseased plants were removed immediately, and the diseased points were irrigated with 2% formaldehyde solution or 20% lime water for disinfection. The whole field was irrigated with 1000 times of Tianda 2116 solution, 72% of agricultural streptomycin soluble powder 4000 times, 77% of Donin wettable powder, 77% of killing wettable powder and 50% copper succinate (DT) wettable powder.