Trees are an excellent addition to your backyard landscaping, but there are many diseases that can kill them and ruin the look of your yard. Dutch elm disease is one of these diseases, and it can destroy your elm trees. Here are three things gardeners need to know about Dutch elm disease.
What causes Dutch elm disease?
Dutch elm disease is caused by Ophiostoma ulmi, a type of fungus. This fungus is
Beetles allow the fungus to spread from tree to tree. If an elm bark beetle lands on an infected tree, then lands on one of your trees, your tree could then develop Dutch elm disease. The fungus can also spread through root systems of nearby trees, so if one of your neighbors has an infected tree, your trees could be at risk.
What are the signs of Dutch elm disease?
Usually, the signs of Dutch elm disease appear in June or July. You'll notice that some of the branches on the affected trees are wilting or sagging, and the leaves will turn brown. Late-summer infections will make the leaves turn yellow and fall to the ground. If you pull a piece of bark off an infected twig, you'll see that the wood underneath is stained brown.
How can you treat affected trees?
If your trees are newly infected, an
If your elm trees have wilted branches or brown leaves, they may be afflicted with Dutch elm disease and should be evaluated by an