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
07/23/2018 - How an uninvited pest doomed the ash tree
03/01/2018 - Time to lose the dead wood
08/07/2017 - Winnipeg's nightmare on elm tree
07/31/2017 - City resumes assault on Elm Bark Beetles
02/20/2015 - Elm firewood inspections to begin in Bismarck
02/09/2015 - Trees felled to curb Dutch elm disease | Stuff.co.nz
10/07/2014 - Dead and Dying Trees on the Increase
02/17/2014 - Charlottetown busy replanting Dutch elm trees