Non-Chemical Management
- If infection with P. ramorum is CONFIRMED by a laboratory test, remove and destroy the infected plant material where practical.
- Avoid overhead watering.
- Good sanitation is important. Clean up and dispose of fallen diseased leaves and remove blighted and cankered twigs and branches.
- Quarantine new plants for 4-6 weeks before adding them to the landscape. This disease can be spread by plant debris, contaminated soil, and contaminated irrigation water and run-off, so keep quarantined plants isolated from healthy plants in the landscape and watch closely for any symptoms of disease.
- Do not buy any plants that have been lying in standing water or that have disease symptoms including leaf blight or lesions, severe leaf loss, or shoot dieback.
- Purchase plants from reputable nurseries only. Carefully inspect all plants before purchase, especially those considered highly susceptible to P. ramorum.
Select non-chemical management options as your first choice!
