Non-Chemical Management
- Select resistant rhododendron species such as Rhododendron davidsonianum 'Serenade', R. delavayi, R. glomerulatum, R. hyperethrum, R. lapponicum, R. occidentale, R. pseudochrysanthum, R. quinquefolium, R. sanctum, R. simsii, R. websterianum. Resistant varieties include 'Caroline', 'Martha Isaacson', 'Pink Trumpet', 'Professor Hugo De Vries', 'Red Head'.
- Choose the right plant for your location. A healthy plant is more resistant to disease.
- Prevent disease by planting only disease-free materials.
- Practice good sanitation to prevent the spread of disease.
- Remove and destroy all infected plants.
Select non-chemical management options as your first choice!