Bohemia Ecological Preserve

The California Oakworm’s favorite food is the Coast Live Oak. Oakworms prefer to eat the fresh 1 cell-layer thick leaves at the edges of the crown. Populations are unpredictable year to year. Healthy oaks will tolerate extensive loss of leaves without serious harm. The caterpillars often drop out of the trees on a silk thread to avoid capture by a bird, spider or yellow jacket. The Oak Moth adult is tan to gray or silvery. Family Dioptidae.