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Avocado limb killed by branch canker and dieback, formerly called Dothiorella canker. The disease is caused by Phomopsis (=Diaporthe) species and various fungi in the Botryosphaeriaceae family.

Dothiorella canker, Botryosphaeria dothidea = Dothiorella gregaria. Brown dead large limb in green canopy of old avocado. UC Riverside Co. Credit: David Rosen — Credit: David Rosen

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