Bugs like mites, aphids, or even pine beetles can wreak havoc on your trees and shrubs, causing the needles to brown. There's also fungal diseases like needle cast that can thrive in humid or wet ...

Q. I was out this past weekend, sweeping up and noticed strange black stuff on the needles of my Afghan pine tree. On closer inspection I found gobs of small, black, mostly winged bugs congregated ...

Gandha is encouraging residents to blast aphids off trees with water. "Some of the trees are quite large for your average home owner, a 40- to 50-foot tree," he said.