Which disease is the most difficult to prevent and treat in the cold season? This question should be easy to answer, and that is gray mold. As the weather turned cold, snow began to fall in northern China, the temperature dropped to below zero, and in greenhouse environments with low temperature and high humidity, vegetables were most likely to cause gray mold. The gray mold mainly infects from the part of the residual flowers. Once the outbreak, the disease will quickly spread and cause a large area of ​​reduced production. Therefore, the disease must be prevented and treated early. First, adjust the environment to prevent gray mold. Due to the suitable temperature for the occurrence of gray mold, the temperature is 20 ° C-25 ° C, and the relative air humidity is above 90%, so it is necessary to prevent and control gray mold by increasing temperature and reducing humidity. During the time when the relative humidity in the shed is high, try to raise the shed temperature as much as possible to avoid the appropriate temperature of gray mold. In addition, it is also possible to reduce the humidity in the shed by measures such as pouring small water under the film and operating the hoe to cover the straw. Second, a combination of flower picking and spray spraying. Pick flowers first, reduce the incidence of gray mold by picking up residual flowers. After picking flowers, use a watering can to prepare 50% hydrazine 1000 times solution, and then spray flowers to avoid hidden dangers caused by incomplete flower picking. In addition, use a sclerotia net for fumigation. Before closing the shed, smoke with sclerotia cleanser. The dosage and smoking time depend on the crop. For example, 250 grams per tomato can be smoked for 8-10 hours; 200 grams per bean and eggplant can be smoked for 6-8 hours. Practice has proved that this method can effectively kill germ spores on plants, soil and walls in the shed, reduce germ spore residues, and prevent disease occurrence. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone GMP Certificated Immune Globulin Injection Supplier in China Hepatitis B Immunoglobulin,Hep B Immunoglobulin,Hepatitis B Immunoglobulin Vaccine,Hepatitis Immune Globulin FOSHAN PHARMA CO., LTD. , https://www.forepharm.com