Non-Chemical Management
- Avoid wounding trees.
- Avoid overhead watering, which can spread infection.
- Control insect and disease problems to decrease chances of wounding.
- Prevent winter injury by not fertilizing late in the growing season and protecting the trunk from strong sunlight in freezing weather.
- Prune out and destroy infected twigs and branches during the summer, cutting 12"-15" below infected area. Remove cankers on trunks and large branches. Disinfect pruning tools after use.
Select non-chemical management options as your first choice!