Eggplant verticillium wilt, also known as half madness, blight, black heart disease, is one of the main diseases of eggplant. Eggplant verticillium wilt disease is a soil-borne disease. In the early stage of eggplant growth, it usually does not show symptoms. After sitting on the eggplant, it begins to show symptoms. Therefore, the timing of prevention and control is often delayed, resulting in greater losses. The disease develops from the lower to the upper, with chlorotic yellow spots between the leaf margins and veins at the beginning. The macula continues to expand and coalesce, and the color changes from yellow to brown. In the early stage of disease, the diseased plants wilted at noon on a sunny day, and they recovered sooner or later. After a period of time, they did not recover. The leaf margins curled up, the leaves turned brown and fell, and they continued to develop from the lower part of the plant to the top. The diseased plants gradually withered. The symptoms of verticillium wilt often occur on half of the leaves or half of the plant, and then from the half leaf to the whole leaf or from the side of the plant to the other side, so it is called "half mad." In severe cases, the whole plant leaves will fall. When the stem is cut longitudinally, the vascular bundle becomes yellow-brown or tan. Its prevention methods include: 1 Selection of disease-resistant varieties such as Changru No. 1, Heiyouliang, Naganoro, Okayama, Eggplant, Jigeng 1, Liaoqian No. 3, Changru No. 3, Luqie No. 1 and so on. 2 seed disinfection with 50% carbendazim WP 500 times liquid soaking 1 hour, or soaking with 55 °C warm water for 15 minutes, until the water temperature drops to 30 °C soaking 6 ~ 8 hours, germination after germination. 3 Seedbed disinfection Annually change seedbed soil, or sterilize the bed soil, use 40% cotton lard 10-15g per square meter bedbed and 15kg of fine soil and spread it into the soil after spreading, about 15cm deep, then water the seedbed. Covering the mulching film to give it full effect of fumigation. After 10 days, the bed soil was turned to l~2 times for sowing. (4) Planting eggplant in flats of well-drained sandy soil with a flat rotation and deep-leveling. The plots of Verticillium wilt have been found to rotate with non-solanum crops for more than four years, of which the rotation with onions and garlic is better. 5 to strengthen the cultivation and management of more mature organic fertilizer, increased phosphorus, potassium fertilizer, promote healthy growth of plants, improve plant resistance. Timely colonization requires 10 cm of ground temperature stable above 15°C to start colonization, avoid pouring cold water after planting and after planting, and pay attention to increasing ground temperature. The diseased plants were found to be removed in a timely manner, and after the harvest, field residues were completely cleared and burned. Grafting can also be used to prevent disease, that is, with wild water eggplant, red eggplant as rootstock, cultivation of eggplant for scion, control effect is obvious. 6 Chemical control 50% carbendazim WP, 40% Optima powder, or a mixture of 50% carbendazim WP and 20% DMA may be used before colonization of eggplant. Or 70% enemy powder, or 50% thiotrexate WP, or 40% cotton wool 2 kg per mu, or 50% benomyl wettable powder 1 kg, and then mixed with 30 kg of fine dry soil Spread evenly on the ground, combined with soil preparation mixed in the soil, and then colonization, disease prevention effect is better. Use 50% carbendazim WP 500 times, or 50% benomyl WP 800, or 50% thiophanate-methyl WP 800 times, or 30% DT Suspension 350 times liquid, or 5% bacteriocin clear 300 times, or 70% thiophanate-methyl 700 times, or 70% dexamethasone 500 times, or 10% double effect Ling agent 200 times to irrigate each Irrigation liquid 500 ml. Pet reagent,Pet urine,Urine test Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.haloxylonl.com