How to control rhizome rot (soft rot) in ginger?

Rhizome rot, also called soft rot, is caused mainly by Pythium and is worst in waterlogged soils, so the first step is good drainage. Use only disease free seed and treat setts with mancozeb at 0.3 percent before planting. In standing crop, remove and destroy affected clumps with the surrounding soil, and drench the area and nearby plants with mancozeb at 3 g per litre or metalaxyl based fungicide as per label. Soil solarisation of beds for 40 to 45 days before planting also helps in problem fields. Avoid planting ginger in the same field every year, rotate with non host crops to break the disease cycle.