Prevention and control of diseases and insect pests of eggplant in greenhouse

(agricultural Rich Network) Fruit rot is treated with 4000 times of agricultural streptomycin sulfate at the initial stage of fruit setting or at the initial stage of the disease, or 77% of the solution can be killed 500 times, or 50% long gum fertilizer acid copper 500 times, focus on fruit spraying and root protection, spraying once every 10 days depending on the disease.

Brown streak mainly harms stems, leaves and fruits. Both seedling and adult plants can be harmed. The control method is to do a good job of seed disinfection, rotation and selection of disease-resistant varieties, long eggplant is more resistant to disease than round eggplant, in addition, timely use of drugs. Use 75% chlorothalonil 600 times, 64% poison alum 500 times, or 40% creamone 600-700 times, spray once in 7-9 days, spray 2-3 times continuously, or use Dasheng Mashi 45 once every 7-14 days, spray 2-3 times continuously.

The methods of prevention and control of Verticillium wilt are seed disinfection, crop rotation, stubble removal, diseased plant extraction and chemical control. The root can be irrigated with 500x solution of 50%DT fungicide, 500x solution of 50% carbendazim wettable powder or 500x solution of 70% dimethazone, 0.5L per plant.

Sclerotinia sclerotiorum can be sprayed alternately with 1500-2000 times of 50% Sukeling wettable powder, 1000 times of 50% prohydantoin wettable powder, 1000-1500 times of methyl topiramate wettable powder or 1000-1500 times of Sclerotinia sclerotiorum wettable powder. In winter, you can use 10% Chlorothalonil smoke agent or 45% Chlorothalonil smoke agent, 250 grams per mu of smoke, or 400-500 times of Fengou'an liquid, spraying 3-4 times.

The disease of cataplexy mainly occurs in seedling stage. Attention should be paid to the disinfection of seedbed and the selection of disease-resistant varieties. The disease in the seedling stage can be treated with 58% Redomir-500x solution of manganese zinc wettable powder, 75% chlorothalonil wettable powder or 64% chlorothalonil wettable powder, sprayed once every 7-10 days, 2-3 times in a row, 1000-fold liquid in 60% frost epidemic gram, 5-7 death once, and 4-6 times in a row.

The prevention and control of aphids and red spiders should be strengthened in the early stage of virus disease. Spray 20% virus A 500 times, or 1.5% phytopathogen 1000 times, before onset. Once every 10 days, even for 2-3 times.

Cotton blight. It mainly harms fruits and leaves. Use 75% chlorothalonil 600 times solution, 58% metalaxyl manganese zinc 400-500 times solution or 64% poison alum 500 times solution, spray once in 7-10 days, 2-3 times in a row. In seriously diseased plots, more attention should be paid to crop rotation, selection of disease-resistant varieties, disinfection of soil, seeds and air, and protection with 300-400 times Bamlan nutrition protection solution, or with Dasheng and Fengshou'an protection, or 60% frost epidemic gram 500-800 times solution, once every 5-7 days, 2-3 times in a row.

Bacterial wilt is a bacterial disease. Do a good job in disinfecting soil, seeds and air. At the initial stage of the disease, 72% agricultural streptomycin 4000 times solution, 50%DT fungicide 500x solution or 77% kill 500x solution can be used to irrigate the roots, each plant 0.3-0.5L, once every 10 days, 3 times continuously.

When dividing seedlings, we should use a large nutrition bowl as far as possible, and make full use of the brightening technology. Strict temperature management, the ground temperature should not be lower than 13-15 ℃. Flowering temperature is not less than 20 ℃, at the same time, it is necessary to prevent more than 30 ℃, and spray 3% potassium dihydrogen sulfate and other foliar fertilizer.

Red spiders and tea yellow mites can be sprayed with 73% propargite EC 2000 times, 5% nisolone EC 2000 times or 20% dicofol 1000 times, once every 10 days, 2-3 times in succession.

Whitefly and aphids are smoked with 0.5 kg of 22% dichlorvos per mu or 0.25 kg of 20% aphid No. 1 aerosol, or 1 kg of 5% aphid dust.