Trees and Shrubs forum: spots on tree leaves

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yanjunlisa
Sep 8, 2016 8:35 AM CST


From the end of August this year, leaves on the tree began to have brown spots and dropped eventually. The tree facing south east. Any suggestion? what could be the problem?

Yanjun
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
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sooby
Sep 9, 2016 2:55 PM CST
Welcome! Can you tell us what kind of tree it is? If you can upload a picture of affected leaves it would help. There are different causes of leaf spots and different trees are susceptible to different problems so we need more information. A rough idea of your location may also help.

yanjunlisa
Sep 9, 2016 5:53 PM CST

Thumb of 2016-09-09/yanjunlisa/63bc98

Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Image
sooby
Sep 10, 2016 4:47 AM CST
Thanks for the picture. We still need to know what kind of tree it is.
Name: Britnay
Detroit Mi (Zone 6a)
Oh! What's that?! ....oops...
Image
1hugaholic
Oct 16, 2016 11:21 AM CST
I'm also having som concerns about spots on my tree.
It's a giant oak tree. Fully grown. I'd say about 20 years old.
I just saw these spots all over the leaves... and I mean EVERYWHERE. It first showed up this summer. Now it's worse.
Thumb of 2016-10-16/1hugaholic/362349

Lord please let this seed not be a weed!
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Image
sooby
Oct 16, 2016 12:44 PM CST
Britnay, your tree looks more like a maple than an oak, and the spots look like a fungal disease called "tar spot", compare with these pictures:

https://www.google.ca/search?q=tar+spot+maple&client=safari&...

Most maples in my area get tar spot every year and it doesn't really do them any significant harm.
Name: Britnay
Detroit Mi (Zone 6a)
Oh! What's that?! ....oops...
Image
1hugaholic
Oct 16, 2016 5:37 PM CST
Yes, your right, it's a maple. Lol I don't know why I was thinking oak. Haha.
Good to know about the fungal. Thanks!
Lord please let this seed not be a weed!

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