Young trees especially those with thin bark trees are most susceptible, particularly newly planted trees. Older trees of the same species develop thicker bark and established root systems making them less susceptible. Sunscald damage occurs in winter and early spring and affects the south west side of thin bark trees. Many trees start with a [...]
At this time of year, when the leaves are changing colors it is important to properly water trees and shrubs to help prevent damage in the winter. In early fall (mid September) you should stop watering trees.The trees will still be actively growing in September and added moisture will slow the onset of dormancy which [...]
Has the top of your Spruce tree ever looked like this? The insect that causes this damage is the White Pine Weevil. It’s name is deceiving, at least in our area, here it mainly does it’s damage to Spruce trees. This weevil is a small brown beetle with a long ‘snout‘. Although the adult is [...]
Usually at this time of year we are rushing to finish up our Elm pruning for our clients. This is due to the pruning ban that is put in place annually to protect our Elms. Calgary is one of the few places in North America that remains Dutch Elm Disease free. The ban goes into [...]
At this time of year we get a fair number of calls to our office from people who wonder “is it to late to prune my trees?”. When discussing the timing of pruning, it is important to consider both the age of the plant as well as the season of pruning. Age of the plant [...]
We have been seeing a number of hedges around Calgary the last few years that are severely infested with Oystershell Scale. The damage appears as large sections of the hedge that “dieback” or fail to leaf out due to the infestation. This results in a very patchy, ragged look. As you can see in the [...]
