Re: [apple-crop] Agri-mycin delivery method

[David A Rosenberger]

Hello, Rye --
Strep does NOT move systemically in plants.  It may be absorbed into surface 
cells, but so far as I know it won't be taken up through roots. If there was an 
easy way to control blight, someone would have found it by now:  we've only 
been studying it for several centuries.
Black on the bark may be dead cells killed by sunburn or by fungi invading 
heat-injured and/or desiccated cells.  So long as you have live bark 
underneath, it probably doesn't matter much.  If it is on the lower part of the 
tree, you can protect trees from sunburn by applying a white latex paint.

On Feb 13, 2013, at 8:30 PM, Rye Hefley 
mailto:ducn...@yahoo.com>> wrote:


Hi Apple gurus,

Answers don't jump out at me feom google.

I'm curious why we don't put agri-mycin in the irrigation water to treat from 
the inside out?  (As in we administer antibiotics to humans through the stomach 
for 10 days.) Why is spray the appropriate delivery?

I'm not growing fruit this year (renoving flowers). I'm not concerned about 
fruit saturation/consumption. I have pruned fireblight cankers what I can but 
I'm sure I didn't get it all nor did I pick up every last leaf particle.

Just grasping for a way to innoculate from the inside. Every pruning cut showed 
healthy wood inside but some trees have black splotches on the outer bark 
almost always on the south sid of the tree. I even scraped some of the black 
from pruned wood and the inner wood is very healthy looking immediately under 
the bark. I have a fantasy that that is sunburn here un sunny So Cal. Not 
realistically hopeful of that.

Thanks,
Rye Hefley
So Cal
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**
   Dave Rosenberger, Professor of Plant Pathology
  Cornell University's Hudson Valley Lab
  P.O. Box 727, Highland, NY 12528
  Office:  845-691-7231
  Fax:845-691-2719
  Cell: 845-594-3060
http://www.nysaes.cornell.edu/pp/faculty/rosenberger/

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[apple-crop] Agri-mycin delivery method

[Rye Hefley]

Hi Apple gurus,

Answers don't jump out at me feom google. 

I'm curious why we don't put agri-mycin in the irrigation water to treat from 
the inside out?  (As in we administer antibiotics to humans through the stomach 
for 10 days.) Why is spray the appropriate delivery?  

I'm not growing fruit this year (renoving flowers). I'm not concerned about 
fruit saturation/consumption. I have pruned fireblight cankers what I can but 
I'm sure I didn't get it all nor did I pick up every last leaf particle.

Just grasping for a way to innoculate from the inside. Every pruning cut showed 
healthy wood inside but some trees have black splotches on the outer bark 
almost always on the south sid of the tree. I even scraped some of the black 
from pruned wood and the inner wood is very healthy looking immediately under 
the bark. I have a fantasy that that is sunburn here un sunny So Cal. Not 
realistically hopeful of that. 

Thanks,
Rye Hefley
So Cal
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