samantha_rae
Full Member
Posts: 12
Joined: Mon Oct 08, 2007 3:10 am
Location: Orangevale, Ca

does my plum tree have Crown Gall

I just found this wierd "boil" on a high branch on my plum tree. I reseached plum tree diseases and the only one that looked like it may be my problem is Crown Gall, but it says it mainly occurs on the stem just above or below the soil line.

[img]https://i42.photobucket.com/albums/e330/vlcmgrl97/FruitTrees020.jpg[/img]

Does this look like it to you?

doccat5
Green Thumb
Posts: 399
Joined: Thu Apr 03, 2008 2:48 pm
Location: VA

I think it looks more like black knot fungus, see this site for some pictures, the one on your tree could be in the beginning stages.

[url]https://www.treehelp.com/trees/cherry/trees-diseases-cherry-blackknot.asp[/url]

You might want to contact your local Agriculture Extension office for help with this one also.

Good luck on finding a cure! :)
doccat5

I'd rather be gardening!

samantha_rae
Full Member
Posts: 12
Joined: Mon Oct 08, 2007 3:10 am
Location: Orangevale, Ca

thank you so much! i think your right.

although I'm not happy about the fungus I'm happy to know what it is, I'm chopping the branch off tomorrow...

bflocat
Full Member
Posts: 27
Joined: Mon Apr 07, 2008 5:23 pm
Location: Western New York

I know very little about trees, but I know way more than I'd like to about black knot, as we had 20 severly infected trees at our new house. But your growth doesn't look like anything I've seen on our trees. I looked at the pics doccat posted, and I can see how the two might be confused from those photos, but with black knot, the "knots" typically encircle stems and the trunk (in severe cases). Also, none of our trees had only one large growth.

Anyway, I just think it might not be black knot (which would be good news, since black knot is impossible to get rid of!), and may be something else.

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