Leaking a oil substance
My small tree leaks oil once a year and has a cotton pollen on the leaves before this happens . I dont believe its bugs . This happens every year . Is it just my trees nature. This tree was a small bush for many years then grew into this small tree .
Fresno County California
Thank you for your question. Your local office is better equipped to help you. Here is their webpage: http://cefresno.ucanr.edu/ Good luck!