Exotic Pest Reporting
Joseph O'Brien, USDA Forest Service, Bugwood.org
Dutch Elm Disease
Dutch Elm Disease (Ophiostoma ulmi) is a fungal pathogen of Elms especially the American Elm . It is a native of the Orient and was first detected in Ohio in 1930.
Streaking below the bark and flagging, or wilting and yellowing of the leaves on a branch of the tree, are common symptoms of the disease which has decimated over half of the American Elms in this country.
Summaries of State Plant Protection Laws and Regulations
10/07/2014 - Dead and Dying Trees on the Increase
02/17/2014 - Charlottetown busy replanting Dutch elm trees
12/19/2013 - Purdue Tree Doctor available for Android and iPhones
11/20/2013 - Tree Pests and Pathogens
11/18/2013 - Rising Concerns Over Tree Pests and Diseases
09/04/2013 - Saving Our Forests From Exotic Pests and Diseases
08/22/2013 - Why Am I Seeing Groups of Dead Trees