[NAFEX] (Pseudo) Fire Blight question

Ed Fackler ed.fackler at gmail.com
Mon May 11 15:11:28 EDT 2009


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 at 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 <ed.fackler at gmail.com>
> *To:* North American Fruit Explorers <nafex at lists.ibiblio.org>
> *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 at 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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