North American Fruit Explorers mailing list at ibiblio

[Ed Fackler <ed.fackler@gmail.com>]

There are a number of sources of "black or extremely dark grey" moldy looking stuff which can show up on various fruiting plants (and likely other hardwoods).  An example is a heavy population of pear psylla leaves a black residue on fruit leaves and/or branches.  And sooty blotch can and is a pest on unsprayed pears.  Also many of the commonly used fungicides simply are not that effective on it

Jim if you are real curious why not send it a lab at U-MN.

ed

On Mon, May 11, 2009 at 2:57 PM, <dmnorton@royaloakfarmorchard.com> wrote:

Iv'e never seen sooty blotch on branches before, only on apples.  What Jim is talking about sounds like Black Rot, especially if it is forming at a pruned branch end and is travelling down the branch.  Usually your scab sprays will take care of any black rot.  Check out the article and photos at http://www.nysaes.cornell.edu/ent/scafolds/2000/4.3_disease.html to see if it is indeed black rot, then go to http://images.google.com/images?gbv=2&hl=en&q=Sooty+Blotch&sa=N&start=0&ndsp=18 and check out the photos of Sooty Blotch to compare with black rot.  Hope this helps!

 

Dennis Norton
Royal Oak Farm Orchard
Office (815) 648-4467
Mobile (815) 228-2174
Fax (609) 228-2174
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
http://www.revivalhymn.com

----- Original Message -----

From: Ed Fackler

To: North American Fruit Explorers

Sent: Monday, May 11, 2009 8:21 AM

Subject: Re: [NAFEX] (Pseudo) Fire Blight question

Sooty Blotch.  I've seen it for years.  Not a problem on wood or at least I didn't experience any problems.

On Mon, May 11, 2009 at 9:05 AM, Jim Fruth <jimfruth@charter.net> wrote:

   My neighbor has apple trees that look like they were blasted with a
black powder.  The "powder" is the thinnest at the point where a branch was
cut off and it gets denser farther on down the branch.  Now the same effect
is starting to show up on some of my trees.  so far, nothing else seems to
be amiss.  What might that be?

Jim Fruth
Brambleberry Farm
Pequot Lakes, MN  56472
For jams, jellies, syrups and more:
www.jellygal.com
1-877-265-6856 (Toll Free)
1-218-831-7018 (My Cell)

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