Non-Chemical Management
- Avoid soil compaction which reduces drainage. Construction, heavy foot traffic, or machinery can compact soil.
- Do not plant in waterlogged, poorly drained, or frequently flooded areas.
- Improve soil drainage by incorporating organic material or using raised beds.
- Plant resistant species in infected areas. Your county Extension agent or WSU Master Gardeners can make recommendations.
- Prevent disease by planting only disease-free materials.
- Remove and destroy all infected plants and plant debris.
Select non-chemical management options as your first choice!