Infecting other melons and tomatoes, eggplants, peppers and other vegetables can be affected from seedlings to adults. The diseased parts were dark green and water-stained at the beginning, and soon they wilted and contracted. Infested with growth points, dry and bald (headless). The roots of the vines are affected. The vines above the diseased part are wilted and wilt, which seems to be wilt. However, the vascular bundle does not change color and the onset rate is fast, and it takes only a few days. The lesions on the leaves were round, dark green, and water-stained. The diseased and healthy borders were not obvious, and they were easily broken when dry. Melon flu disease contraction and depression. Under high humidity conditions, the diseased part can produce sparse white mold, late disease melon rot, there is stench odor. First, the incidence of the law High humidity is a key factor in the occurrence of the disease. The suitable temperature for disease onset is 28°C-30°C, but the bacteria can grow and develop at 9°C-37°C. In the open summer and autumn crops, if there is more rain and more precipitation, the daily precipitation is more than 50 millimeters, or the amount of precipitation is more than 100 millimeters. The rain is fine and the weather is hot, and the epidemic can occur. After onset, if there is no rain for more than 10 days, the disease will stop developing. Repeatedly infested cucumber fields. Second, control methods 1. Strengthen management. Apply sufficient organic fertilizer, deep plowing, sorghum planting, mulching, watering under the membrane, and reducing humidity. After the rain in the open ground, the water was drained in time to remove the sick and buried in the field. 2. Soil disinfection. Seed bed soil disinfectant 6 grams / square meter, fine dry soil 15 kilograms mix, when planting under the cover, disinfection. 3. Seed treatment. Soak the seed in constant temperature water at 55°C for 15 minutes, remove and cool immediately by putting it in cold water. 4. Chemical control. In the early stage of disease, the central diseased plant was firstly removed and sprayed with 600% anti-mite water repellent liquid 600 times or 72.2% Propionic water 600 times liquid, once every 6-8 days, and sprayed 3-4 times. Can handle the soil and prevent root damage. The method of soil treatment is rooting, that is, using the above-mentioned agents for controlling the disease, the soil at the base of the stem is opened at the beginning of the disease, and 100-200 ml of liquid is poured into each plant. In order to save labor, the above-mentioned medicament can also be sprayed on the root stem. Dehydrated Garlic Flakes,Roasted Garlic Flakes,Dehydrated Granulated Garlic,Bulk Granulated Garlic shandong changrong international trade co.,ltd. , https://www.cragriculture.com