Fusarium wilt is a soil-borne pathogen that attacks potato, tomato, eggplant and pepper plants. Disease fungi (Fusarium oxysporum) enter through the roots and interfere with the water conducting vessels of the plant. As the infection spreads up into the stems and leaves it restricts water flow causing the foliage to wilt and turn yellow.
Once fusarium wilt infects a plant, there is no effective treatment. Remove and dispose of affected plants immediately; don’t compost this garden refuse. Whenever possible, remove and replace fusarium-infected garden soil.
For tomato growers, one of the best defenses against this long-lived disease is using varieties with known fusarium resistance.
Chemical management: There is no such chemical known, you can go for following chemical prior
- Drenching with Ridomilgold and streptocycline
- spraying of Nativo