Skip to Content.
Sympa Menu

nafex - [NAFEX] Re: black knot

nafex@lists.ibiblio.org

Subject: North American Fruit Explorers mailing list at ibiblio

List archive

Chronological Thread  
  • From: "Kristina & Bruce" <herenorthere@lycos.com>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Re: black knot
  • Date: Thu, 18 Sep 2003 18:29:53 -0400

>Date: Wed, 17 Sep 2003 21:29:05 -0700
>From: "Michelle Horner" <shelly2@wi.rr.com>
>Subject: [NAFEX] black knot
>To: <nafex@lists.ibiblio.org>
>Message-ID: <002201c37d9d$6886ad60$6501a8c0@michelle>
>Content-Type: text/plain; charset="iso-8859-1"
>
>So does dormant sprays help control black knot? More imput here please.
>Shelly SE WI zone 4/5 (I cut 1 branch out early this spring on my Stanley
>plum--which is right now loaded with fruit; so much so I'm thinking I need
>to brace some of the branches). YUM.


Here's a link to New York's Black Knot of Plums factsheet:

http://www.nysipm.cornell.edu/factsheets/treefruit/diseases/bk/bk.html

The important things to notice are that black knot infections occur in spring
and we're not likely to see the results before the following year. So if the
disruption of my early seaon spraying was a problem, I might not know yet.

My "disease" sprays that time of year include lime sulfur, micronized sulfur,
GardensAlive's copper soap, and Serenade. The change I made two seasons ago,
that might have influenced this season's lack of knots, was that I began
using Serenade. But there are way too many variables to consider this any
proof that it prevented black knot. This year, however, had some ideal
infection weather and, although other spraying didn't occur, I got the
Serenade on the trees. Next year's crop of black knot might be a good
measure of Serenades' effectiveness.

Bruce Wittchen
1/2 mile from Hartford
Zone 6




____________________________________________________________
University of Phoenix Online. Free Information - Online Classes
http://r.hotbot.com/r/lmt_uopo/http://servedby.advertising.com/click/site=563632/mnum=125825
This offer applies to U.S. Residents Only



  • [NAFEX] Re: black knot, Kristina & Bruce, 09/18/2003

Archive powered by MHonArc 2.6.24.

Top of Page