What fungicides are effective for controlling Fusarium

1. Adding SH medium amendment on a regular basis can control Fusarium pathogens. 2. Choose 50% Benlate wettable powder; use a 4000-fold dilution when the daily average temperature is below 25°C, and a 6000-fold dilution when the daily average temperature is below 28°C, once every 7 days, spraying and drenching the whole plant. 3. Choose 25% Prochloraz emulsifiable concentrate at 2000-fold mixed with Procymidone wettable powder at 1000-fold, once every 7 days, spraying and drenching the whole plant. 4. Choose 31.60 Befen Prochloraz aqueous suspension at 2000-fold, once every 7 days, spraying and drenching the whole plant. 5. Choose 25.9% Difenoconazole emulsifiable concentrate at 3000-fold, once every 7 days, spraying and drenching the whole plant. 6. Choose 80% Maneb wettable powder at 400-fold, once every 7 days, spraying and drenching the whole plant. Other causes of occurrence Fusarium pathogens survive in the medium for a very long time, often more than a year, and the more severe the acidification of the medium, the higher the probability of occurrence; it also occurs more easily when ammonium nitrogen fertilizers are applied, and it occurs more easily when harmful root-knot nematodes, mites and the like in the medium cause mechanical injury. If Chinese orchid plants are infected and damaged by Fusarium pathogens, it is a very difficult disease to treat. Fusarium pathogens live in the medium, and when they encounter root exudates they germinate on the root exudates, enter the plant body and spread, obstructing the normal function of the vessels, so that the plant cannot carry out normal functions, leading to wilting, drying up and death. Therefore, Chinese orchidcultivationmanagers should, in addition to strengthening the selection of the medium and maintaining its pH at neutral, also strengthen chemical control, so that the plants can be protected from the harm of Fusarium pathogens. Wang Huaiyin