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Pear Blister Mites

 
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Did some searching, and the only I can find on the web so far are sprays and oil sprays to control pear blister mites. I checked permies, and found nothing.

Anyone out there, have any idea of what mother nature does to control these? I have to believe that there is something out there that eats them or some plant aroma that drives them off.

Thanks tons for any input, I am going to keep searching I am working on planting out two fruit tree guilds currently, I have two mature trees, one apple and one pear. Wanna solve this, there has to be a solution short of resorting to sprays.
 
steward
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Location: Currently in Lake Stevens, WA. Home in Spokane
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From the University of California (Davis):

Resistant Varieties
Pears with naturally russetted surfaces (Bosc, Hardy, Winter Nelis) do not show the effects of blister mite attack.

Organically Acceptable Methods
Sulfur sprays and oil sprays after harvest are organically acceptable methods.

Hope that helps.
 
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Location: missoula, montana (zone 4)
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I remember before I heard the word permaculture, I looked up the organic solution.  I had two trees seriously infested with pear leaf blister mite.  On one I used the organic spray (I think it might have been sulfur).  It helped a little. 

On the other tree, I mulched it and sprayed the leaves with alaska fish fertilizer.  The leaves turned a dark green and all of the pear leaf blister mites were gone.  All gone.  I couldn't find any. 

 
Brandon Monterosso
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Thanks Paul my instinct was fellin me that, I just wasnt sure. that being said, I should be all set. Bocking 14. Comfrey was planted yesterday, and mulching is in progress.
 
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Location: Vancouver, WA
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Our Orcas pear tree had mites this year, we started spraying the infected limbs with a strong wormwood tea several times a day, mites appear to be gone now. other herbal parasiticides would probably do the same. the leaves are still damaged though, don't know how to fix that.
 
Did Steve tell you that? Fuh - Steve. Just look at this tiny ad:
dry stack retaining wall
https://permies.com/t/85178/dry-stack-retaining-wall
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