1. UC IPM
White powder covering a canker of branch canker and dieback, formerly called Dothiorella canker. The disease is caused by <i>Phomopsis</i> (=<i>Diaporthe</i>) species and various fungi in the Botryosphaeriaceae family.
White powder covering a canker of branch canker and dieback, formerly called Dothiorella canker. The disease is caused by Phomopsis (=Diaporthe) species and various fungi in the Botryosphaeriaceae family.
Credit: David Rosen