A little phomopsis, some hail damage and an unknown (Pestalotiopsis) May 3, 2016 by Marilyn OdnealSome phomopsis was noticed on the Chambourcin and some hail damage was noted on the grape leaves. The black spots on teh leaves are phomopsis and the tearing of the leaves is hail damage. This is a Chambourcin leaf with a symptom we are currently trying to identify. Note: this has since been thought to be Pestalotiopsis see http://gwi.missouri.edu/grape-growers/ipm-reports/may-8-2017.pdf Here is what the symptom looks like on the underside of the leaf.