Eggplant fruit leaves wilting caution yellow wilt and blue wither
2021-03-19 12:20:37
The eggplant begins to wilted at the beginning of flowering and set fruit, early in the day when the weather is dry or at noon on sunny days, and it recovers in the morning and in the evening or when the weather is cool, and does not recover in the late period and then shedding. This symptom may be eggplant verticillium wilt disease, eggplant bacterial wilt may also be, the harm is greater, and there is currently no good chemical control, should take comprehensive preventive measures as soon as possible. Once onset, chemical agents can be sprayed continuously or irrigated 3-4 times to control the spread of the disease.
Verticillium wilt is first developed from the lower leaf to the upper leaf or from one side to the whole plant, so it is also called half mad. The roots, stems, branches, and petioles of the diseased plant were dissected and the vascular bundle became tan. The disease is a fungal disease with a temperature of 19-24°C. The bacterial wilt is wilting from the top of the leaf. The disease begins at the base of the stem and later extends to the shoot. Most of the shoot's pith is ulcerated or hollow, and the cross section of the stem is squeezed by hand. When the humidity is high, a small amount of milky white mucus overflows. The disease is a bacterial disease, the incidence of moderate temperature 30-37 °C.
1. Rotation: 4-5-year rotation with non-solanum crops, onion, garlic or rice. Use more resistant varieties. The plant is planted at the topography of Gaozao, timely drained and dehumidified, and the soil is treated with high-temperature solar energy. After deep plowing, the organic fertilizer must be decomposed, cultivated strong seedlings, planted timely, and cultivated with sorghum or ridges, and covered with plastic film. Remove the diseased body in time.
2. Seed treatment: To prevent Verticillium wilt, use 50% Carbendazim WP 500 times solution to soak seeds for 1 hour, or use 80% thiram or 50% Ketan Dan wettable powder for seed dressing. The dosage is dry and heavy. 0.2%. The prevention of bacterial wilt can be soaked for 30 minutes with 300mg/L neomycin and 30% DT500x.
3, seedbed disinfection: in the preparation of nursery soil, in the nursery soil with 40% per square meter with 10-15 grams of cotton, with 15 kg of sieved dry fine soil mixed made of medicine soil, the medicine soil evenly At the end of the dumplings and into the soil, a depth of about 15 cm, and then watering, covering the film, boring for a week after the spread spread out excess pesticides, sowing after a week.
4. Grafting and cultivation: Using wild eggplant, Japanese red eggplant, Toluubam as rootstock, eggplant as scion, grafting using splicing method or splicing method.
5. Verticillium wilt chemical control: Spray 50% carbendazim WP 500 times or 70% thiophanate-methyl wettable powder 600-700 times before seedling stage or planting. It can also be soaked with 70% thiophanate-methyl wettable powder 1500 times or 50% benomyl wettable powder 1000 times 30 minutes. After colonization or early onset, use 50% carbendazim WP 500 times, or 70% thiophanate-methyl wettable powder 400 times, or 10% DX 2 200X, or 70% DK Pine WP 500 times, or 50% DT wettable powder 400 times Irrigation roots, per irrigating solution 250-300 ml, irrigation once every 5 days, even irrigation 2 times. The drug was stopped 20 days before harvest. Foliar combined spraying 0.3% urea solution plus 0.3% potassium dihydrogen phosphate solution.
6. Chemical control of bacterial wilt: At the early stage of disease, 77% can kill wettable microparticle powder 500 times, 72% agricultural streptomycin soluble powder 4000 solution, 14% coloammulin solution 300 times or 50% amber. Acid copper (DT) wettable powder 500 times to irrigate the root, 250-500 ml of liquid per strain, irrigation once every 7 days, even irrigation 3-4 times.
Verticillium wilt is first developed from the lower leaf to the upper leaf or from one side to the whole plant, so it is also called half mad. The roots, stems, branches, and petioles of the diseased plant were dissected and the vascular bundle became tan. The disease is a fungal disease with a temperature of 19-24°C. The bacterial wilt is wilting from the top of the leaf. The disease begins at the base of the stem and later extends to the shoot. Most of the shoot's pith is ulcerated or hollow, and the cross section of the stem is squeezed by hand. When the humidity is high, a small amount of milky white mucus overflows. The disease is a bacterial disease, the incidence of moderate temperature 30-37 °C.
1. Rotation: 4-5-year rotation with non-solanum crops, onion, garlic or rice. Use more resistant varieties. The plant is planted at the topography of Gaozao, timely drained and dehumidified, and the soil is treated with high-temperature solar energy. After deep plowing, the organic fertilizer must be decomposed, cultivated strong seedlings, planted timely, and cultivated with sorghum or ridges, and covered with plastic film. Remove the diseased body in time.
2. Seed treatment: To prevent Verticillium wilt, use 50% Carbendazim WP 500 times solution to soak seeds for 1 hour, or use 80% thiram or 50% Ketan Dan wettable powder for seed dressing. The dosage is dry and heavy. 0.2%. The prevention of bacterial wilt can be soaked for 30 minutes with 300mg/L neomycin and 30% DT500x.
3, seedbed disinfection: in the preparation of nursery soil, in the nursery soil with 40% per square meter with 10-15 grams of cotton, with 15 kg of sieved dry fine soil mixed made of medicine soil, the medicine soil evenly At the end of the dumplings and into the soil, a depth of about 15 cm, and then watering, covering the film, boring for a week after the spread spread out excess pesticides, sowing after a week.
4. Grafting and cultivation: Using wild eggplant, Japanese red eggplant, Toluubam as rootstock, eggplant as scion, grafting using splicing method or splicing method.
5. Verticillium wilt chemical control: Spray 50% carbendazim WP 500 times or 70% thiophanate-methyl wettable powder 600-700 times before seedling stage or planting. It can also be soaked with 70% thiophanate-methyl wettable powder 1500 times or 50% benomyl wettable powder 1000 times 30 minutes. After colonization or early onset, use 50% carbendazim WP 500 times, or 70% thiophanate-methyl wettable powder 400 times, or 10% DX 2 200X, or 70% DK Pine WP 500 times, or 50% DT wettable powder 400 times Irrigation roots, per irrigating solution 250-300 ml, irrigation once every 5 days, even irrigation 2 times. The drug was stopped 20 days before harvest. Foliar combined spraying 0.3% urea solution plus 0.3% potassium dihydrogen phosphate solution.
6. Chemical control of bacterial wilt: At the early stage of disease, 77% can kill wettable microparticle powder 500 times, 72% agricultural streptomycin soluble powder 4000 solution, 14% coloammulin solution 300 times or 50% amber. Acid copper (DT) wettable powder 500 times to irrigate the root, 250-500 ml of liquid per strain, irrigation once every 7 days, even irrigation 3-4 times.
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