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.