Southern blight is caused by soil-borne fungus Athelia rolfsii, which usually infects lower stems near or at the soil surface and leads to wilting, stem and root rot, discolored leaves, and often results in the death of the plant.
Use resistant species and cultivars as well as healthy, certified seeds and seedlings. Avoid planting sensitive crops in infested soil.
Ensure having good soil drainage to avoid overwatering.
Maintain lower pH of the soil - pH around 6.5 prevents rapid fungal growth.
Solarize the soil or use fumigants before planting to reduce the infection in the soil.
Disinfect tools, infected flower pots, and hands to avoid disease transmission.
If possible remove and destroy the infected parts of the plant. Burn it or toss it into the garbage. Do not compost.
