Spring pruning and fertilizing of california live oak trees
P. A. Miller
California Agriculture 1(12):4-4. DOI: 10.3733/ca.v001n12p4a.
Not available – first paragraph follows:
The tip mildew or “witches broom” disease of the California Live Oak trees is increased by early spring pruning and fertilization. These are common practices which should be discontinued or avoided.
P. A. Miller is Associate Professor of Plant Pathology and Associate Plant Pathologist in the Experiment Station, Los Angeles.