


Avocado trees with white powder & decay on trunks. Botryosphaeria fungus?
I have a hass avocado and fuerte avocado tree in pots. They both have a white powdery substance forming on their trunks, I think where branches were pruned. The hass (left) also has black decay at these spots. It was moved to a bigger pot 3 months ago after it was showing signs of stress (yellow leaves and brown leaf tips).
I’m wondering if this could be Botryosphaeria fungus? The Ficus street trees on my block have this fungus. Can my avocado trees beat this or should I get rid of them to try to avoid spreading the fungus to other trees/plants in my yard? I live in Southern California.