1 Prevention and control from sowing to sowing date 1.1 Adjust the planting structure and make a reasonable rotation. Avoid continuous cropping with melons and solanaceous vegetables. Rotate with cruciferous cabbage and Chinese cabbage; scallions of the lily family, garlic, etc. for more than three years. 1.2 selection of disease-resistant varieties. Such as Haijiao No. 2, Zhongjiao No. 4, Zhongjiao No. 5, Zhongjiao No. 6, Zhongjiao No. 7, Zhongjiao No. 8, Sweet Pepper No. 3, Sweet Pepper No. 4, Sweet Pepper No. 6, and Pickled Pepper No. 1 Noodle No.9, Fengjiao No.1, Dujiao No.1, Jinjiao No.8, Lisheng Jiechun, Champion Green Pepper, Precocious No.1 and so on. 1.3 seed bed disinfection. Can use 50% carbendazim 1:100 poisonous soil 1.2 kg/m2 or apply 75% thiophanates 10 g/m2 with a small amount of soil mixing or 1 m per square meter 300 times of water is evenly sprayed on the bed before sowing or after sowing, or 1 gram of Greenhenge 1 to 15-20 kilograms of screened fine soil is dubbed as toxic soil, and 1/3 of toxic soil is sprinkled in the seedbed. The remaining 2/3 of the poisonous soil was planted and seeded. 1.4 Chemical seed dressing. For each kilogram of seeds, 1-1.5 g of Greenhenge No. 1 and 3-4 g of 50% thiram WP or 8-10 g of Green Hunter No. 3 were mixed and then sowed. 1.5 Pharmaceutical soaking. Soaking with 10% tribasic sodium phosphate solution for 30 minutes or 100 times formalin soaking for 30 minutes or 50% carbendazim 500 times soaking for 2 hours. 2 sowing to the planting period 2.1 use 75% thiophanate-methyl 600-800 times or 75% chlorothalonil 1000 times to control damping-off; 72.2% Precive 5-7.5ml/m2 spraybed to prevent tripping Diseases, concurrent treatment of early blight, anthrax, etc. 2.2 In the seedbed period, every 667 square meters is sprayed with two bags of Leech pepper chambers or 500-800 times grams of Grams, or 400 times of virus a wettable powder to prevent viral diseases. Spray it every 7 days and spray 3 times. Can receive good results. 3 Colonization until the end of the results with 50% to avoid fog or 10% imidacloprid 5 g/(mu) 40 kg of water to control aphids and concurrent treatment of cotton bollworm; alternate use of dt emulsion 400 ml/(mu), or use 2 billion pb/ml H. armigera nuclear polyhedrosis virus suspension 50-60 ml / (mu) control of cotton bollworm, and cure tobacco budworm, aphid. In the pre-morbidity and early onset of the wilt disease, the roots were irrigated with 3000 gram of Green Hunter No. 1, or 600 times of Green Hunter No. 2 or 1500-2000 times of Green Hunter No. 8, or 500 times of Green Pepper No. 2 sprayed or rooted. , every 1 to 7 days, 1 to 2 consecutive times, and other diseases. The virus disease can be used 1000-1500 times plant disease spirit, or a600 times the virus, or with 2% Zhongnanmycin 300-400 ml / (mu) spray, the effect is significant. 4 Outcome 4.1 Disease prevention and control. In the initial stage of onset of spraying the field, with 75% thiophanate-methyl 600-800 times, or 40% carbendazim 400-600 times, or anthrax 600 times, to prevent anthracnose, powdery mildew, blight, etc.; 72% of agricultural streptomycin 20g/(mu), or 25% wulkaning wettable powder, control bacterial scab: use 72% Preclosure, or 30% nephrotoxicity 800 times, or 70 Mancozeb Zinc WP 500 times to control fusarium wilt and gray mold; 20% virus a, or 1.5% phytosanitary WP 500 times to prevent viral disease; 72% Kelu wettable powder 600-800 times, or 77%, can kill WP 500 times to prevent late blight, blight, cotton rot, etc.; 5% frost powder dust, 5% carbomil dust powder, or 5% chlorothalonil dust 1kg/(mu) powder spray to prevent various diseases. 4.2 Insect pest control: 1 The larvae at the young stage of spraying: spraying tremulone with 0.9% avermectin 3000 times; using 10% Dagongchen WP 1000 times to control aphids: with 2.5% kung-fu EC, or 10% imidacloprid EC , or 4.5% beta cypermethrin EC 1500 times control of aphids, cotton bollworm, tobacco budworm, beet armyworm, Liriomyza sativae. Spray once every 5-7 days and spray 3 times. (2) Physical control: Yellow or yellow tube traps can be set in the protected area to trap whitefly, whiteflies, aphids, and liriomyzae and other yellow pests that have tropism toward yellow, or silver-gray mulching membranes to repel aphids. 3 Biological control: actively protect and use natural enemies, and when the adult whiteflies are found, they can release Lygus bees; biological agents, with 1.8% Insect-Clon soluble water, or 2% bactericide (Ningnanmycin), or 72% of agricultural streptomycin sulfate soluble powder, or 5% of stuck calcium cream and other biological agents to control pests and so on.
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