General Information Sources for Late Blight Control: Johnson, S. B. 2010. Tomato and Potato Late Blight Information for the Upcoming Growing Season: Recommended Practices Following a Season of Infestation. University of Maine Cooperative Extension Bulletin 2441, 4pp. Johnson, S. B. 2010. Potato Late Blight. University of Maine Cooperative Extension Bulletin 2441, 5pp. Johnson, S. B.