The annual provincial elm tree pruning ban is around the corner. The ban runs from Apr. 1 to Aug. 31 each year to help stop the spread of Dutch Elm Disease (DED), a fatal tree disease caused by a ...

and the trees are better-known for having been decimated by Dutch elm disease, a fungal infection spread by elm bark beetles. (For quick identification of four elm species by their samara ...

The annual ban on elm tree pruning takes effect on April 1 across Saskatchewan. The ban, which runs until August 31, is a ...

Led by Dr. Samuli Junttila, associate professor of forest health and Earth observation, a team of researchers conducted dendrometer measurements of 26 bark beetle-infested and 31 healthy spruce ...

all the ash trees on the property in one bad year of a elm bark beetle infestation, and a mammoth silver maple tree near the house — the oldest tree on the property that had given the property ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study from the University of Eastern Finland shows. Led by Dr Samuli Junttila ...