George from Beattie Kansas writes
Bonide Fruit Tree Spray is not labeled for use on Pear trees. Neem oil would be a good alternative as it is labeled for most fruit trees and for leaf spot. We recommend you contact your local cooperative extension office to determine the best time to apply products for leaf spot on pear trees in your region as timing will vary greatly from one region to another.
Answer last updated on: 04/19/2012