Field Identification
Cytospora Canker is a fungal disease affecting stressed woody plants and trees, identified by sunken, discolored bark lesions. These cankers often exude sap or resin and cause girdling, resulting in branch dieback or even tree death.
Cytospora infections create distinctive elongated, sunken areas on tree bark, often leaking a gummy sap or amber-colored resin. It primarily attacks trees already under stress from drought, injury, or poor management.
How to Deal With It
Organic Control Methods
Promote optimal tree health through proper watering, balanced nutrition, avoiding injury to bark, and regular monitoring for early detection of infections.
Use beneficial microbes like Trichoderma spp. to suppress the fungal pathogens naturally.
Promptly prune and remove infected limbs to reduce disease spread. Avoid overcrowding plants to improve airflow and reduce humidity around susceptible plants.
Sterilize pruning tools between cuts and remove infected debris promptly from the garden area.
Apply neem oil treatments at early signs of infection to inhibit fungal growth and protect surrounding healthy tissues.
Let Nature Handle It
Natural Enemies
- Trichoderma spp.
- Beneficial Soil Microbes