Pear blister mite

Eriophyes pyri

Pear blister mite is a microscopic mite that feeds within the foliage of pear trees.

Pear trees suffering from blister mite will look as follows;
In spring, new foliage develops many slightly raised blisters, up to 3-4mm in diameter, that are reddish pink or yellowish green in colour
Later in the summer, these blister become blackish brown
The whole leaf can be affected and almost all the leaves on a tree may become blackened
The mite does not normally affect cropping or the health of the tree

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