Cabbage brown spot disease mainly occurs on the outer leaves, and light yield is reduced, but not at all. Brown spot disease not only occurs on cabbage, but also on other vegetables. Therefore, it is very important to use pesticide fungicides to control diseases in time.
I. Agricultural control
Seed disinfection, soaking in warm water at 50 ° C for 10 minutes, or using seed weight 0.3% more than 40%. Ketone wettable powder, or 45% oxazolone. Fumei double wettable powder is seeded and sown after 48 to 72 hours of sealing. Or seed dressing with 50% carbendazim wettable powder with a seed weight of 0.4%. And use resistant varieties.
2. Strengthening water and fertilizer management
Grasp the cultivation and disease prevention centered on fertilizer and water. Apply enough base fertilizer, early topdressing, nitrogen, phosphorus and potassium together, avoid partial application of nitrogen fertilizer, spray foliar nutrient in a timely manner, promote plant growth without strengthening, enhance resistance; timely watering, growth period Prevent dry water from inducing dry heartburn, and avoid flood irrigation to prevent soil from being too wet. It should also be combined with management to remove diseased leaves in a timely manner and concentrate on burning to reduce the source of bacteria.
Seriously and non-cruciferous vegetables are rotated for more than 2 years. Choose plots with flat terrain, fertile soil and well-drained plots. After the harvest, the soil is turned over and the diseased body is decomposed and decomposed. Sorghum or high ridge cultivation, suitable for late sowing, avoiding the hot and rainy season, controlling the water and fertilizer during the rose period.
Chemical control
Combined with prevention and treatment of other diseases, early spraying will prevent and control diseases. When the plant enters the core period, at the latest at the onset of the disease, spray 75% chlorothalonil WP + 70% Thiabendazole WP (1:1) 1000-1500 times, or 40% pyrimethanil 800 Double solution, 45% oxazolone. Fumei double wettable powder 1000 times liquid, 56% azoxystrobin chlorothalonil + 50% antibacterial WP (1:1) 800 ~ 1000 times liquid, with 45 ~ 60 kg per mu dosage, spray 2 ~3 times, once every 10 to 15 days, alternate medication.
In the early stage of severe disease, 70% thiophanate-methyl WP can be used, or 40% carbendazim. Sulfur suspension 800 times solution, 80% mancozeb wettable powder 800 times solution, 50% different bacteria. Fumei double wettable powder 1000 times liquid, 80% anthrax. Fumei WP 800 times solution, 50% ethyl mold. Carbendazim WP 1000 times solution, 40% synergistic metalaxyl WP 1000 times solution and other agents spray, once every 7 days, continuous control 2 to 3 times, each time 45 ~ 60 kg per mu.
Generally, the field adjacent to the early-ripening cabbage is susceptible to disease. In particular, excessive application of nitrogen fertilizer, high humidity in the field of clay or wetlands, shady or poorly drained plots. If the growing season encounters rainy weather or the humidity in the field is high and the temperature is high, the disease will expand rapidly and it will easily cause damage.
More pesticide knowledge , please pay attention to China Pesticide Network
Collated Nails
Common Nails designed with collated paper strip are mostly used as framing nails and Roofing Nails. It is made for quick uses and high efficiency works on the decking or flooring constructions. Normally the wire nails are hot dipped galvanized, or copper plated to enhance the corrosion resistance and beautiful outlook. The collating angles of the nails can be different while now mainly supplies four types: 34 degree, 28, 21, 17 degrees.
Collated Nails,Polished Collated,Galvanized Paper Collated Nails,Ring Shank Paper Collated Nails
HENGSHUI YUZHENG IMPORT AND EXPORT CO., LTD. , https://www.yzironnails.com