European canker, caused by the fungal pathogen Neonectria ditissima, presents a significant challenge to apple production across temperate regions. The disease manifests as cankers on trunks and ...

When I started my horticultural career in New Orleans back in 1980, my memory of growing citrus seems so easy. White flies and other sucking insects and the sooty mold they caused were the only major ...

Hard to believe, but fall is here. What's up in your garden? Got a question? Get answers from Ask an Expert, an online question-and-answer tool from Oregon State University's Extension Service. OSU ...

When a branch falls or a tree dies, one common reason is a group of diseases with an especially ominous name: canker diseases. “Canker” comes from the same root as “cancer.” Like cancers, cankers can ...