Issue link: http://winesandvines.uberflip.com/i/116287
grapegrowing considered. In some cases, the symptom may be caused by a chemical or fertilizer the grower has applied, or spray material that drifted from a neighboring field. In other cases, the problem may be caused by an environmental pollutant or extreme weather. There are instances where a grapevine disorder can be remedied by grower intervention, but not all disorders will be within the control of the grower. Accurate and rapid diagnosis of a disorder is essential before a plan can be implemented to correct the problem and mitigate future recurrence. PWV Reviewed by Patty Skinkis (Oregon State University) and Ed Hellman (Texas AgriLife Extension). eViticulture and the Grape Community of Practice are funded by the NIFA-USDA Specialty Crops Research Initiative (SCRI) and eXtension. Recommended Resources "Compendium of Grape Diseases," 1988 American Phytopathological Society. "Identifying Pests and Abiotic Disorders," University of California. "Scouting Vineyards and Diagnosing Problems," Michigan State University. Grape Disease Management Overview Herbicide Injury on Grapevines Hail Damage on Grapevines Sunscald Damage to Grapes Frost Injury, Frost Avoidance, and Frost Protection Monitoring Grapevine Nutrition Grapevine Nutrition – online learning module and diagnostic tool Integrated Crop Management of Grapevines PowerPoint, Michigan State University pr actica l win ery & vin eya rd APRIL 20 13 71