On November 3, 2012, a herbicide drift seminar and webinar was held at Southeast Community College in Lincoln, NE. This event was a cooperative effort of Nebraska Winery and Grape Growers Association, University of Nebraska Viticulture, and the Northern Grapes Project.
Unfortunately, the webinar recording of the sessions is not available as we had hoped.
Below are links to PDF versions of the presentations.
Tim Martinson, Cornell University — The View from New York: Diagnosis, Economics, and Management of Grape Injury from 2,4-D and Other Growth Regulator Herbicides.