What causes root rot in roses? Causes and solutions
1. Poorly aerated potting soil
Cause: If the soil is not well aerated, the potting soil becomes damp, stuffy and hot, which easily breeds bacteria and very easily leads to water accumulation, causing root rot.
Solution: Replace it with well-aerated soil.
2. Overwatering
Cause: Roses are relatively afraid of wet conditions, so if too much water is given, water accumulation easily occurs, which in turn causes root rot.
Solution: Control the amount of water given, and water only after the soil has dried out completely. Do not water too much; just keep the soil surface moist with no standing water.
3. Too much fertilizer
Cause: Roses like fertilizer, but too much fertilizer can also cause fertilizer burn, scorching their roots, which then rot.
Solution: Be sure to reduce the amount of fertilizer, and reduce the frequency of fertilizing appropriately. Fertilize once before bud formation and once after the flowers fade, and avoid fertilizing at other times as much as possible.
4. Pests and diseases
Cause: Bacteria multiply in large numbers in damp environments, and an increase in bacteria leads to a series of pests and diseases. The pests and diseases harm the roots of the roses, causing the roots to rot.
Solution: Remove pests and diseases promptly, and use pesticides to spray and kill them as a preventive measure. At ordinary times, apply appropriate phosphorus and potassium fertilizer to improve the disease resistance of the roses. Cut off the rotten roots and disinfect them to avoid secondary infection.