Unhealthy pear tree
The tree is a little espaliered pear tree with five varieties grafted on, and was planted last year. This year it isn't doing well, and the right side in particular is sparse and sickly (Flemish Beauty and Seckel branches). Many of the leaves have whitish spots on the upper surface that correspond to lumps on the lower surface. As the problem progresses, the leaves tend to roll and the lumps on the back become grayish. Can you tell me what is wrong and what to do about it? We strongly favor organic remedies. Thank you.
Benton County Oregon pear trees
Looks like a bad case of pear rust mite: