one. Major pests and diseases
1. The main diseases include: viral diseases, epidemics, anthrax, scab, bacterial leaf spot, root rot, and physiological diseases.
2. The main insect pests are: Tea tree borers, aphids, whitefly, tobacco budworm, and spotted fly.
Second, pollution-free integrated control technology
Adhere to the principle of “prevention from the main, comprehensive prevention and controlâ€, give priority to the use of agriculture, physics, biological control, and scientific and rational chemical prevention and control.
1. Crop rotation and soil disinfection
Green pepper continuous cropping aggravated the occurrence of various diseases, conditions and non-sweet potato rotation for 2-3 years. Protected cultivation can deepen the soil more than 30cm in summer when the temperature is high, then cover the film and continue to dry for 10-15 days. The seedbed can be used 50% carbendazim soil mix, 50-80g per cubic meter of bed soil, soil disinfection can be used 50% carbendazim per 667 square meters or 75% thiophanate-methyl 1kg, mixed fine soil and then turned to the ground. Formalin 200 times liquid can also be used to cover the surface of the wetland for one week, and sowing or planting after two weeks of release.
2, choose resistant varieties
The varieties of resistance and resistance to green pepper virus include: Luojing No. 10, Xiangyan No. 11, Xiangyan No. 16 and Zhongjiao No. 4 and Israel’s Makama, Mayo, and Leon.
3, cultivate disease-free strong seedlings
(1) Seed treatment. Soak the seeds in warm water at 55°C for 10-15 minutes. Be careful not to stop stirring. When the water temperature drops to 30°C, stop stirring. Soak for 4 hours to prevent fungal diseases. Use 10% trisodium phosphate solution for 20 minutes soaking at room temperature. After washing out, water soaking and germination can prevent virus diseases. Soaking with 50% carbendazim 500 times solution for 2 hours, 50% carbendazim WP or 50% thiram WP can be used for 0.4 % Seed Dressing, or 25% Azhuangling Wettable Powder with 0.3% seed dressing to prevent fungal diseases.
(2) Spring and summer or summer and autumn seedlings cover insect nets, which are harmful to ticks and whiteflies and can prevent virus diseases.
(3) timely sowing, nurturing strong seedlings, control of seedbed temperature and humidity, the daytime temperature does not exceed 30 °C, at night not less than 15 °C, pay attention to seed bed ventilation and humidity, timely seedlings, found the diseased plants, immediately removed, bring out the depth of the seedbed Bury, and deal with disease points.
4. Implement scientific field management
(1) In the protected area, sorghum cultivation is adopted and the mulch is covered. Micro-drip irrigation or sub-deep irrigation is applied. The protective facilities adopts no drip film, strengthen the indoor temperature and humidity control, timely ventilation, proper control of watering, to avoid watering in rainy days, timely watering after watering, try to prevent condensation on the foliage to control the occurrence of diseases.
(2) Pruning and wiping in time, removing diseased leaves, diseased flowers, and diseased fruits in a timely manner, removing the old leaves that have lost their functions, improving the conditions for ventilation and light transmission, removing the diseased bodies in time after pulling, and paying attention to agricultural operation hygiene, preventing Infected.
(3) During the morning and evening in the facility, it is appropriate to release the air in the evening so that the temperature of the greenhouse can be raised rapidly. When the temperature rises to 30°C, the air is released again. When the temperature drops to 20°C, the air vent is closed to delay the temperature drop; the minimum temperature at night is maintained. At 12-15 °C to prevent the occurrence of gray mold.
5, biological control
(1) In the protected area, yellow plates can be used to trap insect pests such as whitefly, aphid, and spotted fly that have a tendency toward yellow coloration; also, nymphalid bees can be controlled to control whitefly.
(2) The use of 2% bacteriocin (Ningnanmycin) 200-250 times in the early stages of disease prevention and control of viral disease; use 1% of agricultural anti-wuycin 150-200 times in the early stages of disease prevention and control of gray mold.
(3) Use 0.9% chlorsulfuron 4000 times liquid to prevent and control spotted fly, cabbage caterpillar, etc., or use 10% liuyangmycin EC 1000-1500 times solution, 5% Cascade EC 1000-1500 times solution tea Huang Hao and Ye Hao.
(4) 25% Qingkenling WP 500 times to prevent bacterial diseases.
6, chemical prevention
Since green peppers belong to the continuous harvest of vegetable crops, chemical control must be used strictly according to safety intervals, concentrations, and methods of application. To avoid exploitation and picking time, it is necessary to pick and then apply pesticides. Chemical pesticides are strictly prohibited 7 days before harvesting, and biological agents or natural enemies should be preferred. It is necessary to alternately use different types of pesticides to control pests and diseases.
(1) Epidemic prevention. After colonization, 80% mancozeb WP can be sprayed 600 times to protect it for 15 days. In the early stage of onset, 40% Phytomycin WP can be sprayed 250 times or 58% Metalaxyl MnZn WP 500 times, 72% DuPont WP WP 800 times, 60% AZM wettable Powder 1500 times, 58% Lei Duomier WP 800 times, interval 7-10 days once, continuous 2-3 times. 45% chlorothalonil smoke can also be used in the shed, with 3-4kg per hectare.
(2) Control of anthrax. In the early stage of onset, 70% thiophanate-methyl wettable powder 600-800 times or 80% mancozeb WP can be sprayed 500 times or 50% anthraquinone WP 400 times or 1:1:200 times. Bordeaux fluid. Once every 7-10 days, spray 2-3 times.
(3) Prevention of gray mold. Prior to transplanting, the seedlings were sprayed with 50% Suo Ke Ling WP 1500-2000 or 50% Propionine WP 1500. At the beginning of the disease, 50% fast-inking WP 1500-2000 times or 50% acetaminophen 1500 times, 60% anti-mildew 600 times, 50% thiophanate-methyl wettable powder 1000 times Liquid, 28% gray mold WP 500-600 times, 65% Tamycin wettable powder 800 times spray control.
(4) Prevention and treatment of viral diseases. Can be used 1.5% plant disease Ling 1000 times, 20% of the virus A wettable powder 500 times, 5% of the bacteria water solution 200-300 times or potassium permanganate 1000 times and love more than 5000 times mixed liquid Spray control.
(5) Aphid and whitefly control. Can be used 2.5% of deltamethrin EC 2500 times, 10% of the meritorious WP 1000 times or extermination 毖4000 times spray control.
(6) Liriomyza control. It can be sprayed with 73% Ketel EC 2000-2500 times, 12.5% ​​Biolin 3000 times or 48% Lancet EC 600-800 times.
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