Have you noticed dark blotches on your tree’s leaves lately? It’s easy to assume the worst and that your tree is dying and needs to come down.
But before you call a tree service in Aurora, CO, to remove the tree, take a breath. These spots might look alarming, but the issue is most likely temporary and treatable. Let’s take a closer look at what causes black spots on tree leaves and what you can do about them.
The Main Reason for Black Spots? A Fungal Infection
Most of the time, black spots mean your tree’s dealing with a fungal infection, usually something called tar spot disease. The disease primarily targets maples, but other tree species can also be affected. The name fits because the spots look like drops of tar.
The fungus that causes black spots thrives in cool, moist conditions, such as those common in Aurora during the spring. Spores released from fallen leaves in the previous season spread through the air, landing on new leaves.
What Do the Spots Look Like?
At first, you’ll probably spot little yellow marks. Then they start to darken, and by summer, they appear as large, black blotches.
It might look scary, but in most cases, it’s just cosmetic. Still, if it keeps happening year after year, the infection can wear the tree down and make it easier for other issues to take hold.
Is the Problem Always a Fungus?
Tar spot may be a common cause of leaf discoloration, but it’s not the only one. Sometimes, your tree is simply stressed by factors such as drought, poor soil conditions, or even air and water pollution. Environmental stress can cause all kinds of issues with your trees, and spotted leaves are just one of the outward signs of trouble.
How To Prevent and Treat Black Spots
The best way to deal with blank spots on tree leaves is to keep fungus under control. You can do this by:
- Raking and removing leaves. Since spores overwinter in fallen leaves, keeping your yard clean can help prevent future outbreaks.
- Improving air circulation. Pruning your trees to allow better airflow can help reduce the moisture buildup that paves the way to fungal growth.
- Avoiding overwatering. Too much water can encourage fungal growth, so stick to a consistent watering schedule.
- Applying fungicide treatments. Having a tree care professional apply a fungicide in early spring can be beneficial in preventing the spread of disease.
Let Bear Creek Tree Service Keep Your Trees Looking Their Best
If you’re still unsure what causes black spots on tree leaves in your yard, or if the problem seems to be spreading fast, call Bear Creek Tree Service for help. We help Aurora homeowners diagnose and treat a wide range of tree issues, including treating fungus on tree bark and leaves, dealing with pest infestations, and more.
To preserve tree health, call (720) 299-1409. Whether it’s tar spot or something else, we’ll help you get to the root of the issue.