In recent days, some farmers who grow watermelons have reported that they have had wilt disease, epidemics, and viral diseases, and some have improperly sprayed watermelons. They don’t know how to prevent and eradicate the disease and go for phytotoxicity. The author consulted relevant agricultural experts on this, and prescriptions for prevention and treatment of drugs were as follows: Bacterial wilt prescription prescribed a pit around the melon root, irrigation 500 ml liquid. Use 50% carbendazim 300 times solution or 30% hymexazide agent 375-500ppm or 50% Chlorobromoisocyanuric acid 800-1500 times solution, add ADD 6000 times solution. It should be noted that 50% of Chlorobromoisocyanuric acid can not be mixed with organic phosphorus. When it is used, it should be diluted well and mixed with other drugs. Interval 3-5 days, even irrigation 2-3 times, and then seal the pit. The leaves and stems are also spray sterilized. After the epidemic drug prescription sits on the melon to prevent the disease, the 10% Kejia suspension agent is sprayed 2000 times for 2 times with an interval of 7-10 days. In the early stage of the disease, 10% Kejia suspension agent is sprayed 1500 times for 2 times with an interval of 7-10 days. Also can use 52.5% fast-acting water dispersant 1500 times or 66.8% mildew WP WP 700-800 times, irrigate root and spray together, prevent 3-4 times. Viral Disease Medication prescription 0.5% amino oligosaccharide water agent 600-800 times liquid + 5% bacteria poison water agent 500 times liquid, green leaves God 200 grams plus 30 kilograms of water, brassin 6000 times liquid + Antai 500 times liquid + kill Viral drug +1% urea, interval 5-7 days, medication 3 times. After the use of traditional Chinese medicine for the treatment of harmful drugs, trifluralin caused root swollen swollen to overflow twice with 6000 times solution of love; 2,4-D harm to use with more than 6000 times liquid + 600 times green wind 95, spray 2 Times. In addition, diseases that are severely dead should be cleared out of the fields and buried deep or burned to prevent germs from spreading to other watermelon plants through rain, wind, and humans. Hen Premix Food,Premix Feed Additive,Animal Feed Additive,Animal Nutrition Powder Shangqiu Meilan Biological Engineering Co.,Ltd , https://www.melanvaccine.com