California almond growers have been plagued by canker diseases that have caused yield and tree losses for years. Yet some mysteries remain about what causes them and how to diagnose the problem. Those ...

You may not readily see it, but healthy spurs on this year’s almond trees set the table for optimizing yields next year. And it could be a mistake to weigh in with a heavy hand when it comes to ...

ALCALALÍ, Spain (CN) — A lethal Central American plant disease devastating olive trees in southern Italy is now killing almond trees in southern Spain, a serious development for an outbreak ...

In my last column I mentioned a “topped” street tree. I’d like to use this column to write more explicitly about the misguided practice of tree-“topping”, why it is so bad, and what the proper ...

An unsatisfactory approach to tree maintenance or pruning is “topping” it. Topping is the indiscriminant removal of branches of a tree above an arbitrary height, leaving unnatural, grotesque stubs and ...