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nafex - RE: [NAFEX] Fireblight cure.

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  • From: "Bruce Hansen" <brucedhansen@sbcglobal.net>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: RE: [NAFEX] Fireblight cure.
  • Date: Mon, 23 May 2005 12:58:24 -0400

Title: Message
I have a Wealthy apple tree that, at one time,  was seriously infected with Fire Blight. I removed the dead wood (didn't know that I had to use ammonia). Some of the branches were large; three or so inches in diameter. The infection occurred about eight years ago and the tree thrives today.  
-----Original Message-----
From: nafex-bounces@lists.ibiblio.org [mailto:nafex-bounces@lists.ibiblio.org]On Behalf Of Richard Frost
Sent: Friday, May 20, 2005 9:51 PM
To: 'North American Fruit Explorers'
Subject: RE: [NAFEX] Fireblight cure.

Fireblight control begins with healthy trees.  A tree with lesions in the trunk might never fully (or even moderately) recover.  After the active fireblight season is over, prune your tree back several inches below any sign of fireblight -- dipping the clippers in ammonia every time.  Now completely reinvigorate the soil down at least 2 feet at the drip line and outward.  Totally pamper this tree without over-fertilizing.  Apply Streptomycin in late fall in a several day lull between storms.  Apply again about 2 weeks BEFORE the tree blooms.  Foliar feed regularly with nutrients after the bloom.  Keep an axe close by so that the tree knows this is its last chance.  Try this 2 years in a row.  After that, consider the battle lost -- the tree is systemically infected.
 
 
-----Original Message-----
From: Jwlehman@aol.com [mailto:Jwlehman@aol.com]
Sent: Friday, May 20, 2005 8:08 AM
To: nafex@lists.ibiblio.org
Subject: [NAFEX] Fireblight cure.

It was written:
   That Pomona fireblight article says, "The best spray to use so far is Streptomycin, if you can find it.  As far as I've been able to discover, only big fruit growers can access Streptomycin."

Hello all,

I'm not sure how well Streptomycin will work for a small grower. About three years ago at an Indiana Hort. Society meeting a commercial grower reported he noticed the outside rows in the orchard didn't receive the same degree of protection as the center of his orchard. He theorized bees coming in from the outside brought in fresh bacterium whereas the center of the orchard trees were visited by bees that had been across flowers with Strep. killing what was on their bodies. Based on his report a few stand alone trees might receive less protection as they would be more likely to receive continual fresh inoculum.

Jerry



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