1. The principle of prevention and control In accordance with the plant protection policy of “prevention-oriented, comprehensive prevention and control,†adhere to the principle of harmless treatment based on “agricultural control, physical control, biological control, and chemical control as supplementsâ€.
2, the main diseases and insect pests damping-off disease, damping-off, stem rot, verticillium wilt, gray mold; tea-yellow, red spider, aphids, whitefly, cotton bollworm, tobacco budworm, small tiger.
3, agricultural control
(1) Selection of disease-resistant cultivars Select targeted high-resistance and multi-resistance cultivars in response to local major pest control subjects and the growing conditions of slab lice.
(2)Cleaning the field to timely remove diseased leaves and diseased fruits, remove the diseased plants, bring out the landslides deeply or destroy them, carry out harmless treatment, and reduce the number of disease and insects.
(3) Fitness training Strengthen the environmental regulation of seedbeds and cultivate age-appropriate seedlings. Strengthen nutrient management and improve resistance. Strengthen water management and prevent drought or stagnant water. Results The old leaves and yellow leaves of the base were removed later.
(4) Rotation and crop rotation shall be subject to a strict rotation system. The same plot as the non-solana fruit vegetable shall be cultivated at least 3 years apart, and the conditional areas shall be implemented with paddy-upland rotation.
(5) Protection of facilities Summer nursery and cultivation should use insect-proof nets and shade nets to shade and prevent insects from growing, thus reducing the occurrence of pests and diseases.
4, physical control
(1) Insect killing traps use electronic insect killers to trap and kill pests such as Coleoptera and Lepidoptera. The height of the insecticidal lamp is generally 1.2~1.5 meters from the bottom of the lamp. The control area of ​​each lamp is generally 1.33~2.0 hectares.
(2) swatch trapping and killing infestation of whitefly armyworms, aphids, and leafminers in the field. 30 cm 20 cm yellow plates are placed 30 to 40 pieces per 667 m2, and the hanging height is equal to or higher than the top of the plants. ~ 10 cm. And hang silver gray reflective film around the field to avoid the embarrassment.
5, biological control
A 10% NS-83 increasing agent emulsion was sprayed 50-80 times before and after the planting to increase the disease resistance. In the early stage of disease, 2% of Ningnanmycin wettable powder can be sprayed to prevent viral diseases from 200 to 250 times. In the early stage of disease, 1% of Wuyimycin aqueous solution is sprayed to control gray mold and early blight. With 72% of agricultural streptomycin sulfate wettable powder 3000 to 4000 times liquid bacterial disease prevention. Use Bt (200IU/mg) emulsion 200 times spray, or use 0.6% matrine aqueous solution 1000 times to control cotton bollworm, tobacco budworm; use 10% of Liuyangmycin EC 1000 ~ 1500 times, or use 1% The matrine aqueous solution was sprayed at 600 times to prevent and treat maggots. The 1.8% avermectin EC was sprayed at 2000 times to control insect pests such as aphids and whiteflies.
6. Pharmaceutical control (1) Principles of chemical prevention and control Chemicals control The use of Pesticides should meet the requirements of GB/T8321 and GB4285, pay attention to the alternate use of various agents, and strictly control the safety intervals of various pesticides.
(2) Buoyancy and Bacterial Diseases: 95% oxaprozin WP 3000 times, or 72.2% propamocarb hydrate 800 times, or 72% urea MnZn wettable powder 600 times spray.
(3) In the early stage of basal rot, use 20% chlormethestine 1200 times, or 95% oxadol WP 3000 times, or apply 200 times thiophanate-methyl wettable at the base. Powder solution.
(4) 80% Mancozeb WP can be used 600 times as early as the early stage of the disease, 50% chlorothalonil WP can be 600 times, or 58% Metalaxyl WP can be used as 600 times, or 68.75% anaerobic manganese zinc dispersible granules 600 times spray control.
(5) In the early stage of the onset of late blight, 52.5% oxazolone-urea cyanide water dispersible granules were used 1500 times, or 58% metalaxyl MnZn wettable powder 600 times, or 72.2% Proplocarbose 600 times, Or 69% manganese zinc enoyl wettable powder 600 to 700 times, or 72% cream urea manganese zinc wettable powder 500 to 600 times liquid spray. Both cure the disease.
(6) At the beginning of the onset of gray mold, spray 25% of azoxystrobin suspension 1500 times, spray once every 15 days to 20 days, and spray 2 or 3 times.
(7) Bacterial diseases are sprayed with 53.8% copper hydroxide 2000 dry suspension 1000 times.
(8) Virus disease use 20% virus A WP 500 times, or 1.5% phytopathogenic Ling emulsion 800 ～ 1000 times, or 2% NINGNAN ADM for 200～250 times spray, every 5 days~ Sprayed about 7 days.
(9) Aphid and Bemisia tabaci can use 1.5% pyrethrin water emulsion 2000 times, or 10% imidacloprid wettable powder 2000 times, or imidacloprid indoxacarb 500 times, or 25% thiamethoxam 1000 times spray. .
(10) Cotton aphids and tobacco budworms were sprayed with a 5% chlorantraniliprole suspension 1000 times solution.
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