Author Archives: Dani Lightle

New Olive Disease in California

Earlier this spring, oil olives with severe defoliation in San Joaquin county were sent in for diagnosis by UC Plant Pathologist Florent Trouillas. He has isolated a putative pathogen, Neofabraea species. In addition to defoliation, leaf lesions and elongate twig lesions were also associated with this fungus. Here is a list of what we know and don’t know about this disease. Continue reading