First, the main types of diseases: seedbed diseases (grey mildew, Sclerotinia, damping-off), gray mold, sclerotia, epidemic diseases, root rot, tomato early and late blight, leaf mold, cucumber downy mildew , bacterial keratoses and so on. Second, the main pests: whiteflies, diamondback moth. Third, prevention and control technology: Prevention and treatment of seedbed diseases: First, strengthen seedbed management. In the snow weather, it is necessary to reinforce the shed, clean the roof of the shed, clear the ditch, and cover multiple layers (a greenhouse, a small bow shed, a small bow shed, a broken cotton sliver, a sack, a straw bag, etc.), dry and wet, and the humidity of the seedbed is high. At the time, dry fine soil is applied on the bed surface and ventilation is provided without freezing. The second is to apply 50% carbendazim 8 grams per square meter on the bed to avoid contact with the seedlings. Prevention of Botrytis cinerea and sclerotinia disease in fields: The removal of gray mold disease, the removal of S. sclerotiorum strains, and bringing out of the field are deeply buried or incinerated. With 40% sclerotin or 50% acetomide suspension 800 to 1600 times or Nongliling 2000 times spray. Root rot prevention and treatment: Pay attention to the drainage of the gutters after the rain, and irrigate the roots with Green Hunter No. 1 3000 times solution or Green Hunter No. 3 1500 times solution or 70% thiophanate-methyl 700 times solution. Disease prevention and control: spraying with 72.2% Prec 800x or 72% dew 500x. Cucumber downy mildew control with the disease. Prevention and control of tomato early blight: Spraying with 50% acetaminophen wettable powder 500 times solution, late blight prevention and control with the disease. Prevention and treatment of bacterial angular spot: spraying with 72% agricultural streptomycin 4000 times or 77% killable (2000) 600 times or 47% Garnett 600 times spray. Bemisia tabaci control: The first is the use of fumigation agent Smoking shed: mainly with 12% Coshun tablets in the greenhouse shed smoke shed. The space in the shed is required to be used when the temperature is low, and the seedlings are too small to be used. 200 grams per acre, smoked once 7-10 days. The second is the use of yellow armyworm board to attract insects: use the yellowish nature of the whitefly, hang 3040cm yellow sticky board in the shed, and hang 30 pieces per acre. It is generally recommended that the lower end of the yellow plate is 20 cm above the top of the crop. The third is to use silver insect nets to avoid pests: use its repellent nature, use silver worm-proof nets as curtains at both ends of greenhouses, and Daejeon Zhang hangs silver worms to prevent pests. The fourth is chemical prevention. Available with 4% avicidacillin EC or 2.5% SM for 15-20 mL vs. 15 kg water or 2.5% KF 2000 times + 4% Aviadine 20010 times or 2.5% Uranus 1500 times or 15% Jin Haonian 1500 times solution or 0.3% matrine 1000 times solution or 5% Fantagold 1000 times solution or 25% Fenjing net 1000 times solution spray control, with special emphasis on the back of the blade spraying, with a sufficient amount of water, spray evenly Penetration, once every 7-10 days, use three times in succession, pay attention to alternate rotation. When a vegetable is strong, it can be controlled by a motorized sprayer. Do not spray when the humidity is high in the rain and snow canopy. Control of Plutella xylostella: Spraying with Bt powder 500 times or 2.5% dish hi 1500 times or 5% iodide 2000 times or 5% fipronil 2000 times. Extruded Film Lamination,Extrusion Coating Lamination,Extrusion Lamination,Extruded PE Film Lamination,SMS Lamination XINLE HUABAO MEDICAL PRODUCTS CO.,LTD. , https://www.golbaltravel.com