Disinfection of watermelon seeds

Watermelon seeds are one of the important ways to spread watermelon diseases. It is necessary to disinfect the seeds before sowing. The main methods are as follows: first, chemical treatment. Soak the watermelon seeds with 2% to 4% bleach solution for half an hour, remove them and rinse them with clean water, which can kill the bacteria on the seed surface; prepare 500 times the solution with 50% wettable carbendazim powder and 10% trisodium phosphate solution. Second, hot seed at high temperature. Third, soak the seeds with warm scalding. Fourth, strong light drying seeds.