Kallas, RaquelMartinson, Timothy E.; Gerling, Chris2021-06-162021-06-162018-03https://hdl.handle.net/1813/103817Part of the series Grapes 101.Phomopsis is the earliest disease-causing fungal pathogen to release its infective spores in the spring. The fungus can cause up to 30% yield losses, and the window of opportunity for preventing losses starts at 1-3 inch shoot growth.en-USInsect and Disease ManagementGrapes 101Appellation CornellCornell UniversityCALSCollege of Agriculture and Life SciencesAgritechViticulturearticle