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Black rot in trees- advice wanted  RSS feed

 
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I could use some advice on dealing with black rot. Ive taken down our plumb trees and am going trough our forest to down all of the choke cherries because of an infestation that I need to get under control before it species jumps to the apple and sour cherry trees. Im unfortunately spreading it by what gets on the ground but I think this should slow it by preventing spread by birds. Take it all down and hope to manage it as the trees grow back? Thoughts?
 
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Location: zone 6a, north america
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hi Ross, you mean the dreaded black knot, yes? it's been decimating the plums & cherries around here as well.

from what i've read, the only way to mitigate the spread of it is to bury the infected wood is it travels by air. don't burn it!

i didn't know that it spread to apples, but what i've been using on the apples for the cedar apple rust is a trick learned from Michael Phelps, nettle tea foliar spray.
it seems to be working so far to improve the trees' vigor, but this year will be the tell.
i'm going to try it on the cherry sucker from the tree i had to cut down this month due to black knot.

got nettles? if so, stick some in a 5 gal bucket and drop some sugar/molasses in it with water, seal the lid and let her ferment for a bit. i've been using a paint strainer to strain the brew. i also spray on the ground around the trunk.

as always, try a small section first to make sure the brew's not harmful instead of helpful.

hope this helps.
 
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