The latest control methods of eggplant Verticillium wilt

Eggplant is also known as half crazy, black heart disease, wilting disease, is an important disease harmful to eggplant, generally infected in the seedling stage, more symptoms will appear after fruit setting, for fruit growth is extremely harmful, seriously affecting the yield. So how to prevent eggplant wilt? Let's get to know each other.

1. Symptoms

The disease is usually released after flowering and fruiting, first from bottom to top or from one side of the leaf, and then to the whole plant, so it is called half crazy. The leaves turn yellow at the leaf margin at the beginning, then develop into half leaves or whole leaves turn yellow, at the same time, they droop and fall off, and when they are serious, the leaves of the whole plant fall off normally. This disease is a full-plant disease, the diseased plant will be dissected roots, stems, branches, petioles, visible vascular brown, so also named black heart disease.

2, the incidence of law

Eggplant verticillium wilt is caused by dahlia verticillata fungi. Besides eggplant, it can also infect many crops such as sweet pepper, tomato, potato, melon and vegetable, but eggplant is the most seriously affected. Pathogens overwintering on the soil with sick bodies, seeds can also be transmitted by long-distance transmission of pathogens, organic fertilizer with sick bodies can also transmit diseases. The pathogen has strong resistance to bad environment and can survive for 6-8 years on soil, so continuous cropping is more serious.

3. Prevention and control methods

Reasonable rotation, rotation with non-solanaceous crops for more than 6 years, selection of varieties with strong disease resistance, disinfection and sterilization treatment for planting before sowing and seedling raising, so as to reduce the incidence rate. Nursery ground should also be disinfected, organic fertilizer should be fully decomposed, resulting in the application of 50% carbendazim wettable powder 1-2 grams per hole, in the seedling irrigation, the use of chemical sterilization to prevent soil bacteria and infection around the root system, for the discovery of diseased plants, carbendazim or thiophanate-methyl irrigation root control, irrigation once every 10 days, 2-3 times in succession, the effect is better.

The above is the introduction of eggplant verticillium wilt control methods, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.