Control methods of Verticillium Wilt in eggplant

Eggplant, also known as half crazy, black heart disease, Fusarium wilt, is an important disease that harms eggplant. Generally, eggplant is infected at the seedling stage, and symptoms appear only after fruit setting, which does great harm to fruit growth and seriously affects the yield. So how to prevent and cure Verticillium wilt of eggplant? Let's get to know it.

1. Symptoms

The diseased plant died in the early stage, the result was few and small, and the yield was reduced more seriously. the disease was generally released after flowering and fruiting, first from the bottom up or from one side of the leaf, and then spread to the whole plant, so it was called half crazy. At first, the leaves turn yellow between the veins of the chicken leaves on the leaf margin, and then develop into half or the whole leaves turn yellow, and at the same time, they droop and even fall off, and in severe cases, the whole plant leaves fall off the normal smooth rod. The disease is a whole-plant disease. The diseased plant is examined for roots, stems, branches and petioles. It can be seen that the vascular bundles turn brown, so it is also called black heart disease.

2. The regularity of the disease

Eggplant Verticillium wilt is caused by Dahlia fungi. In addition to eggplant, it can also infect many crops, such as sweet pepper, tomato, potato, melon and vegetable, but eggplant suffers most seriously. The pathogen overwinters on the soil with the disease residue, and the seeds can also wait for the pathogen to spread over a long distance, and the organic fertilizer with the disease residue can also spread the disease. The bacteria have strong resistance to adverse environment and can survive in the soil for 6-8 years, so the disease of continuous cropping is more serious.

3. Prevention and control methods

Reasonable rotation, rotation with non-Solanaceae crops for more than 6 years, select varieties with strong disease resistance, disinfect and sterilize the planting before sowing and breeding, so as to reduce the incidence of disease. The seedling land should also be disinfected, and the application of organic fertilizer should be fully mature, so that 50% carbendazim wettable powder 1-2 grams should be applied to each hole, irrigation water should be used to plant seedlings, and fungicidal effect should be used to prevent soil germs and infection around the roots. for the diseased plants found, carbendazim or methyl thiophanate can be used for root control, once every 10 days, continuous 2-3 times, the effect is better.

The above is the introduction of eggplant Verticillium wilt prevention and control methods, hope to help you, want to know more related knowledge, please follow us.