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Is this a disease in my pear tree?

 
Ryan ElSmith
Posts: 23
Location: Northern pennsylvania, zone 5b
posted 6 years ago
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My pear tree has these vertical fissures in the bark.  I pruned it way back a few years ago, and  I can’t tell if the fisures are just the transition from a small diameter branch to a large one or if they are a disease actually tearing the bark.
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[Thumbnail for 8BC38D22-77E1-414F-A67A-2F4C81DF1FB4.jpeg]
41064BCD-22F3-4037-B7D0-721D35A75382.jpeg
[Thumbnail for 41064BCD-22F3-4037-B7D0-721D35A75382.jpeg]
 
Ryan ElSmith
Posts: 23
Location: Northern pennsylvania, zone 5b
posted 6 years ago
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I have been looking at some images online and it may be a black rot canker.  Anyone have experience with this?
 
Gurkan Yeniceri
pollinator
Posts: 231
Location: Australia, Canberra
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posted 6 years ago
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I was thinking neem oil then I searched for "Black rot canker Michael Phillips" and this turned up

https://groworganicapples.com/phorum/read.php?51,1711,1711

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Gurkan Yeniceri
pollinator
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Location: Australia, Canberra
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posted 6 years ago
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And here is a recipe thread for the tree paste her eon permies

https://permies.com/t/2890/Biodynamic-Tree-Paste

Canberra Permaculture - My Blog - Wild Cheesemaking - Aquaponics - Korean Natural Farming

 
James Landreth
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posted 6 years ago
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It might be physical damage to the tree, and it may or may not have gotten infected after that. It looks pretty similar to trees I've seen that were injured when they were young by rabbits, rogue weedwacking, etc.

When you reach your lowest point, you are open to the greatest change.
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Ken W Wilson
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Posts: 1190
Location: Nevada, Mo 64772
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posted 6 years ago
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Old sun scald damage? Is it on the sunny side?
 
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