Sadly, there is no cure for Dutch Elm disease once your tree is infected.
When to Prune Elm Trees By Season. As with many types of deciduous tree, the ideal pruning time for an elm tree is early spring, as treeclearing.bar By Year. According to treeclearing.bar, you should thoroughly prune an elm tree once every three years. Pruning an elm. Aug 26, It affects American elms and kills individual branches, then eventually the entire tree over the course of one to several years.
It can also spread to nearby trees. At Arbor Aesthetics, we strongly recommend NOT trimming your elm tree between April and October when the trees are leafing.
How is. It is crucial to prune an elm tree at very specific times of year. Open wounds attract the elm bark beetle, so be sure to avoid pruning between April and July. Pruning during autumn is also a no-no. This is because autumn is fungi season, and fungi are the elm tree’s worst enemy.
The best time therefore for elm tree pruning is early spring ahead of the growing treeclearing.barted Reading Time: 6 mins. Timing Is Important Do any pruning between September and March to avoid the season in which elm bark beetles are most active.
Elm bark beetles spread Dutch elm disease, a fatal tree disease that. Jan 15, Unlike other species of trees that can be pruned year round the Elm tree typically needs to be pruned during the coldest parts of winter to protect the tree from the deadly Dutch Elm disease.
By pruning during the coldest parts of the season you provide your Elm tree with all the benefits of pruning without the risk of treeclearing.barted Reading Time: 2 mins.