Common eggplant diseases include brown streak, early blight, cotton wilt, verticillium wilt, gray mold, anthracnose and so on. 1. Brown streak: At the initial stage of the disease, 800 times of 40% chlorothalonil suspension or 800 times of 60% Dover wettable powder and 500 times of 50% Kelantan wettable powder were used to control it. 2. Early blight: control with 10% difenoconazole water dispersible granules 1500 times solution or 25% azoxystrobin suspension 1500 times solution before the onset.

Eggplant brown streak

1. Clean up the sick and disabled in the field in time after the eggplant is harvested.

2. Soak the seeds with warm water at 55℃ for 0/5min before sowing, or soak the seeds with warm water at 52℃ for 30min, or soak the seeds with 800 times solution of 75% chlorothalonil wettable powder for 2h, or soak the seeds with 50% benomyl wettable powder: 50% thiram wettable powder: fine soil = 1: 65438.

3. Rotation with crops such as onion, garlic or beans for more than 2 years to prevent serious accumulation of bacteria in the soil.

4. At the initial stage of the disease, 800 times of 40% chlorothalonil suspension, 800 times of 60% Duofu wettable powder, 500 times of 50% Kelantan wettable powder, or 800 times of 70% thiophanate-methyl wettable powder were used for prevention and treatment, and sprayed once every 7- 10 day, 2-3 times a day.

5. After the results, 600 times of 75% chlorothalonil wettable powder, or 600 times of 80% mancozeb wettable powder, or 500 times of 12% copper oleate emulsifiable solution, or 1: 1: 200 times of Bordeaux solution were used for control, and sprayed once every 7 days.

Second, eggplant early blight

1. In the process of planting, strengthen management (implement crop rotation, deep tillage, increase application of organic fertilizer, apply appropriate amount of nitrogen fertilizer, drain water in time after rain, and keep the field ventilated and transparent).

2. Before sowing, soak the seeds in warm water at 52℃ for 30 minutes, then cool them with cold water and sow them. Or use 10ml of 2.5% fludioxonil suspension seed coating agent to dilute with 200ml of water, and then seed dressing 4kg. Or seed dressing with 50% heterotrophic gland wettable powder (the dosage is 0.3% of the seed weight).

3. Before onset, use 10% difenoconazole water dispersible granules 1500 times solution, or 25% azoxystrobin suspension 1500 times solution, or 3000 times solution of 25% tebuconazole emulsion in water, or 60% oxazole? Dyson water dispersible granules 1000- 1500 times, or 78% Boer? 400-500 times of Mn-Zn wettable powder or 64% oxazole? Manganese-zinc wettable powder 500 times solution or 58% nail paste? 500 times solution of manganese-zinc wettable powder, 500 times solution of 50% iprodione wettable powder, 800- 1000 times solution of 50% procymidone wettable powder, 600 times solution of 80% mancozeb wettable powder, 600 times solution of 75% chlorothalonil wettable powder, or 50% heterotrophic bacteria? 500 times of thiram wettable powder, or 600 times of 70% propineb wettable powder, or 300 times of 65% zineb wettable powder, or 500 times of 77% copper hydroxide wettable powder, every 7 7- 10/day 1 time, every 3-4 times 1 time.

Three, eggplant cotton wilt

1, implement rotation (non-solanaceae, melon vegetables, onion, garlic or bean crops with more than 3 years are suitable as the previous crop).

2. Before sowing, soak the seeds in warm water at 55℃15min, or soak them in warm water at 50℃ for 30min, or soak them in 300 times formaldehyde15min, or use 53% refined nail polish? Soak the seeds in 500 times of manganese-zinc water dispersible granule solution for 30 minutes, or use 10 ml of 2.5% fludioxonil suspension seed coating agent and 2 ml of 35% metalaxyl emulsion seed coating agent to mix with 150-200 ml of water to coat 4 kg of seeds.

3. In the early stage of onset, use 70% foscarnet sodium? Manganese-zinc wettable powder 500 times solution, 58% nail paste? Manganese-zinc wettable powder 600 times solution, 68% refined nail paste? 600 times solution of Mn-Zn water dispersible granule, 500 times solution of 56% cuprous oxide wettable powder, 500 times solution of 77% copper hydroxide wettable powder, 800 times solution of 64% oxadiazon wettable powder and 72% cymoxanil? Manganese-zinc wettable powder 500 times solution, 66.8% propylene? 600-800 times of ipratropium wettable powder, 600 times of 70% propineb wettable powder, 600 times of 72.2% propamocarb hydrochloride aqueous solution and 75% ethyl aluminum? Chlorothalonil WP 600-800 times solution, 66.8% propineb? 600-800 times of ipratropium wettable powder, etc. , once every 7- 10 days, once every 3-4 times (the above drugs are used alternately).

4. If the disease is serious, 50% dimethomorph wettable powder 1000- 1500 times solution +75% chlorothalonil wettable powder 600-800 times solution, 25% metalaxyl wettable powder 800 times solution +50% thiram wettable powder 800 times solution, 20% azoxystrobin can be used.

Four, eggplant verticillium wilt

1. Before sowing, seed is dressed with 50% carbofuran wettable powder or 50% thiram wettable powder, the dosage is 0.2% of the seed weight, or with 500 times of 50% carbendazim wettable powder for 2 hours.

2. After the seedlings are planted, they are diluted by 90% hymexazol wettable powder for 2000-3000 times or by 500 times with 50% copper succinate wettable powder for root irrigation, and the dosage of each plant is 60- 100ml. Or irrigate the roots with 600-700 times of 50% carbendazim wettable powder or 800- 1000 times of 70% thiophanate methyl, with the dosage of1000 ml per plant. Root irrigation once every 5-7 days, 2-3 times each time.

3. At the initial stage of the disease, 77% propargite wettable powder 800- 1000 times, 50% carbendazim 600-800 times or 70% thiophanate-methyl 600-800 times was used for prevention and treatment, once every 7- 10 days and twice a day.

Five, eggplant gray mold

1, the last crop should not be lettuce, celery and strawberry.

2. If it is planted in greenhouse, spray it with 600 times of 400g/L pyrimethanil suspension before planting, or use 300g 15% procymidone smoke per mu.

3. After the crops enter the flowering stage, if the disease has not yet occurred, 200g of 45% chlorothalonil smoke agent or 300g of 20% pythium can be used per mu? Chlorothalonil smoke agent, or 300g 15% procymidone smoke agent, is used once every 7- 10 days.

4. Use 38% oxazole ether after onset? 1000 times solution or 42.4% oxazole-ether? Fluoroamide suspension 1500 times solution is sprayed on the bottom leaves (prophase), flowers and young fruits (florescence), every 7 7- 10/day 1 time, every 2-4 times 1 time.

Six, eggplant anthracnose

1, rotating with non-solanaceae vegetables for more than 2-3 years.

2. Before sowing, soak the seeds in warm water at 55℃ for about 15 minutes, or soak the seeds in warm water at 52℃ for about 30 minutes.

3. Should we use 120% water dispersible granules 1500 times solution +70% mancozeb wettable powder 600-800 times solution, or 20% diphenyl ether? 2500-3500 times of prochloraz microemulsion, or 1000- 1500 times of 30% thiophanate EC+700 times of 70% propineb wettable powder, or 800- 1000 times of 5% imidazole wettable powder +6000 times of 75% chlorphenamine.