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Location

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Western PA

This year most of my maple leaves have , what i think is leaf spot.

If i grind them up and spread them in my patch like i do every fall, could that cause any winter over issues?
Matt D, i hope you can respond to this one.

8/31/2014 1:44:47 PM

Central NY

For the maples it could...(if they are also close by)

8/31/2014 2:04:14 PM

Mulino, Oregon

Zappa, more than likely it's Anthracnose

9/1/2014 11:27:26 AM

Connecticut

Correct diagnosis is the first step, do your leaves look like this?

http://upload.wikimedia.org/wikipedia/commons/a/a4/RhytismaAcerinumDetailU.jpg

9/1/2014 11:39:44 AM

My maple leaves look like that picture. Have for the last 3 years starting in early august.

9/1/2014 12:02:45 PM

Western PA

Matt, definitely not that. I believe that is called " tar spot "???
The spots i am seeing are a reddish brown and have a light yellow hallow. I will try to post a pic tomorrow.
Tree doc, i looked at some pics of anthracnose, and do not believe that is it.

( I'll be bak !! )

9/1/2014 8:55:38 PM

Western PA

We have had a mess of rain this summer, near record amounts for june and july. I noticed the spots in early July.

9/1/2014 8:57:00 PM

Mulino, Oregon

Zappa, google image 'Maple Anthracnose' and I think you'll see what your problem is.

Jim

9/2/2014 12:58:01 PM

Western PA

I posted some pics in my diary, under " zappa ". Having trouble trying to copy and paste the pics here. I will try tomorrow possibly.

9/2/2014 11:27:09 PM

Western PA

Pic 1 , http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=227636

9/3/2014 6:55:22 AM

Western PA

Pic 2 backside of leaf, http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=227637

9/3/2014 6:56:39 AM

Western PA

Pic 3, close up, http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=227638

9/3/2014 6:57:54 AM

Connecticut

My previous post was of "Tar Spot" (Rhytisma Acerinum)

http://upload.wikimedia.org/wikipedia/commons/a/a4/RhytismaAcerinumDetailU.jpg

What I think you (ZAPPA) may have is Purple Bordered Leaf Spot. It is hard to tell because the images are blurry (you might want to try macro mode next time).

http://hort.uwex.edu/articles/purple-bordered-leaf-spot

Since you have the ability to see the leaves up close you want to look within the leaf spots small black, pimple-like fungal fruiting bodies form, see the following link for a picture of what this looks like...

hort.uwex.edu/sites/default/files/Purple-Bordered%20Leaf%20Spot.pdf

If I can be of further assistance please let me know.

9/3/2014 8:07:12 PM

Western PA

That has to be it !
I will look very close and see if I see any of the black spores in the middle.

I would guess that even if this is the issue, that it will not hurt my soil for growing in ???


Thanks

9/3/2014 11:36:23 PM