1. UC IPM
Wet discoloration of the outer bark of coast live oak surrounding entry holes made by the polyphagous shothole borer, <i>Euwallacea</i> sp., is a symptom of fusarium dieback, caused by an unnamed species of <i>Fusarium</i>.
Wet discoloration of the outer bark of coast live oak surrounding entry holes made by the polyphagous shothole borer, Euwallacea sp., is a symptom of fusarium dieback, caused by an unnamed species of Fusarium.
Credit: Akif Eskalen