Eggplant Verticillium wilt is the most common soil-borne disease on eggplant. Once it is onset, it is very difficult to control and the harm is also the most serious. If it cannot be controlled in time, it is easy to cause the occurrence of outbreak.
One, field symptoms
Eggplant verticillium wilt disease mostly occurs after fruit set, and the disease analysis increases sharply during the fruit period. At the early stage of disease, the middle and lower leaves of the plant chlorosis or chlorosis on the middle and lower leaves, and gradually develop upwards, so that half of the branches and leaves become yellow and dead, and the fruit is not rigid. In severe cases, the whole plant withered and the leaves dried off and became light stalks. Peeling the roots and stems of the cortex reveals that the vascular bundle has turned brown and is also known as black heart disease.
Second, prevention and control methods
To prevent the occurrence of Verticillium wilt on eggplant, a microbial agent can be applied during transplanting; before the onset of seedling, it should be diluted with gold micro multi-purpose 300-fold dilution for individual roots, and the combined root-feeding should also be performed with foliar spray. Before the onset of illness, the thiazole zinc 400 times liquid plus 6000 times liquid natural sprayed leaves, sprayed once 8-10 days, even sprayed 2-3 times. For the eggplant that has already developed Verticillium wilt, roots that have begun to rot should be set aside in time. For eggplant that has just begun to show signs of wilting, 300 times the amount of gold in the root can be used for “micro multi-purpose†or thiazole zinc 400 Diluent; also can be used 50% aluminum chloride 300 times copper or 60% aluminum sulfate 500 times aluminum sulphate Irrigation.
Third, safety issues
During the prevention and control, attention should be paid to the safety intervals of pesticides, the safety of medications, and the personal safety and quality and safety of agricultural products.
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