Non-Chemical Management
- Avoid overhead watering.
- Space plants and prune to improve air circulation.
- Use good sanitation. Remove and destroy or dispose of diseased plant materials. Clean up fallen leaves and debris beneath plants. Do not compost diseased materials.
- Maintain plant health with proper nutrition and irrigation. Healthy plants are more disease-resistant and more tolerant of minor damage.
- Avoid overfertilizing, which encourages lush, tender growth that is more susceptible to disease. If fertilization is necessary, use a slow-release or lower-nitrogen formula to maintain moderate growth.
Select non-chemical management options as your first choice!
