Pear problem

Asked May 25, 2018, 7:33 PM EDT

I have attached two pictures from a pear tree in our back yard. The young pears have been stunted and have an orange powdery substance on them. We would like you to tell us what is wrong and what we can do for our pear tree to fix the problem. These were the only pears we could see on the tree this year. We live in the northwest corner of Rock Creek here in Portland, OR and are concerned this is something that could spread to other pear trees in the neighboring area. Thanks for any help you can give us.

Washington County Oregon pear diseases pear rust

1 Response

Pears can get a rust disease. Have you been treating your trees regularly for common problems? Dormant sprays?
Here are links to some publications about rust. Compare photos with your tree and surrounding trees. You may want to call the local Master Gardener Volunteers (503-821-1150) or email ( with them about follow up concerns or to narrow down the diagnosis. This web format is not the easiest to use when situations get complicated.
Note the the boxed "H" on the publications indicates homeowner available treatments.
"Watch out for rust that can jump from incense cedars to fruit trees"