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Pear leaf blister mite

Symptoms

Miniscule gall mites live in the foliage of pear trees. In spring, they secrete chemicals that cause blotches to appear on new foliage. These eventually turn black and the leaf dies, usually in late summer.
Find it on: pears
Time to act: spring to autumn

Overview

The problem looks worse than it is. Miniscule mites secrete chemicals that cause blistering or blotches on the new leaves, which gradually turn blackish-brown. Although the mites breed prolifically, producing several generations over summer, the productivity of the tree isn't usually affected.
Solution
Miniscule gall mites live in the foliage of pear trees. In spring, they secrete chemicals that cause blotches to appear on new foliage. These eventually turn black and the leaf dies, usually in late summer.
Organic
Remove by hand any affected leaves and shoots.


Discuss this problem

Talkback: Pear leaf blister mite
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suejan 24/04/2012 at 12:23

I have a bad infestation of blister mites in my tree,is there any treatment you could recommend as the scale is too large to break off affected leaves.
regards
janet

Alina W 24/04/2012 at 12:51

You can remove the affected leaves, but there's no treatment that I'm aware of. Although it looks awful, it shouldn't affect the crop.

Cj3 25/04/2012 at 19:24

I purchased four pear trees in their dormant stage, they have been in a polytunnel for 3 weeks, as the leaves appeared they were blistered, and mainly pink, I believe they have pear leaf blister mite, but the garden centre say it is leaf mite stipple, is there such a thing, I cannot find any reference to it, also, will this spread to other pears which were also purchased from the same garden centre, what can I use to erradicate the pest?

Nikki Scott 30/04/2012 at 19:07

try this: http://www.dovebugs.co.uk/Pear%20leaf%20blister%20mite.pdf

Nikki Scott 30/04/2012 at 19:10

try this: http://www.dovebugs.co.uk/Pear%20leaf%20blister%20mite.pdf

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