root rot on Legumes
Quick answer
If your Legumes has root rot, the most likely cause is: Fusarium root rot fungi attack bean seedlings growing in wet, cold soils, rotting the seed before or during germination and twisting or stunting the young seedling. Brownish cankers then form on the roots and on the stem below the soil line, and a severe infection girdles the stem so the plant dies.
Start here:
- 1. Practice a crop rotation with at least 4 to 5 years between bean plantings so the Fusarium fungus in the soil has no host to survive on.
- 2. Treat the seed with a fungicide at planting: use 2 ounces of 75 percent thiram or 2 ounces of 75 percent captan per 100 pounds of seed to control seed decay and damping-off.
Why Legumes gets root rot
Legumes
Fusarium root rot fungi attack bean seedlings growing in wet, cold soils, rotting the seed before or during germination and twisting or stunting the young seedling. Brownish cankers then form on the roots and on the stem below the soil line, and a severe infection girdles the stem so the plant dies.
How to reverse root rot on Legumes
- 1
Practice a crop rotation with at least 4 to 5 years between bean plantings so the Fusarium fungus in the soil has no host to survive on.
- 2
Treat the seed with a fungicide at planting: use 2 ounces of 75 percent thiram or 2 ounces of 75 percent captan per 100 pounds of seed to control seed decay and damping-off.
Keep root rot off this Legumes
Plant beans in warm, well-drained soil so seedlings escape the cold, waterlogged conditions that favor Fusarium, and rotate out of beans for at least 4 to 5 years to keep soil inoculum low.