The scale in the accompanying photograph is likely Lecanium parthenolecanium corni, the European fruit scale, a type of soft scale that is a common pest of more than 50 woody trees and shrubs.Its ...

Allegheny County residents can learn how to identify the spotted lanternfly and help curb its spread by attending a series of public meetings sponsored by Penn State Extension. The invasive insect ...

Q. Last year, my plum tree didn’t have any fruit at all. This spring, it has so many plums that I’m afraid the branches may break! Why? This phenomenon is called “alternate year bearing ...

We do know that purple leaf plum cannot handle the heat in certain locations, particularly south and west exposures. Those locations need a desert or desert-adapted tree, which it is not.