Home > Question >

What is causing large black spots on some of my Acer leaves?

Our Advice:

This is a fungal disease called tar spot which is quite common, especially on sycamore. It does not seem to harm the trees so is not worth spraying. Rake up as many leaves as you can and dispose of them. Feed with Growmore as it starts growing next spring

Here are some related questions:

Not what you are looking for?

If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here

We will try to get back to you with an answer as soon as we can.

Here is some more information for you:

Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.

Ask another gardening question:

Learn More About Pests and Diseases

Gardening Projects for December

---

How to take Hardwood Cuttings

How to Protect Containers

How to clean your pots

How to Protect a Climber

Latest Gardening Videos

---

Growing Geraniums

Is it safe to compost rhubarb leaves?

Moving House and Taking the Garden with You | Garden Ideas | Val Bradley

When and how should I prune a jostaberry?

How to Grow Orchids

How do I treat liverwort?

All Videos

Explore Gardens from Around the World

Villa d'Este Gardens
Tivoli, Italy

Shinjuku Gyoen National Garden
Tokyo, Japan

Majorelle Garden
Marrakesh, Morocco

Keukenhof
Lisse, Netherlands

Vallarta Botanical Garden
Vallarta, Mexico

Lalbagh Botanical Garden
Bangalore, India