Q. My ornamental pear trees have dropped numerous dried leaves, but as I look up into the trees, there are more dried leaves that have not fallen. Do I need to spray? I don't want to lose these ...

Q: My beautiful Bradford pear tree has been gradually dropping its leaves all spring and summer.What would cause this and can I do anything to stop it? A: If there are no spots on the leaves and ...

QUESTION: I have a Bradford pear that is about six years old and is about 20 feet tall. The bottom has about half the leaves it normally has in spring, while the top has the normal full foliage.

A thinned tree lets more of the wind blow through, thus lessening the sail effect. Second, trees with too many leaves won't dry out as fast, and that can increase the incidence of leaf diseases.

A: The first thing that stood out to me with this question I received is that, even without a known diagnosis, the homeowner's first instinct was to use a pesticide. There are so many steps to ...

QUESTION: I have an Oriental pear tree. Each year when the spring leaves develop, some appear burned. They turn black and the stems die. What should I do? ANSWER: Fire blight, a bacterial disease, … ...

Q: I have a fruitless olive tree that is steadily losing its leaves. It’s been slowly happening since last year, but most noticeably with the higher temps we’ve been experiencing lately. Some ...