This non-native beetle kills ash trees by feeding on the layer beneath the bark, cutting off water and nutrients. Approximately one-third of the trees in Fort Collins are ash trees, making the city's ...

The emerald ash borer, a tiny yet destructive invasive beetle, has been confirmed in Aurora. That's prompting officials in the Colorado city to remove or treat infected trees and encourage residents ...

Q. My peach tree has started looking sad – not as many leaves as last year, leaves are turning yellow, not much fruit, and there are little holes in the trunk where sap has oozed out and dried. I’ve ...

Common tree pests fall into three main categories: defoliators such as tent caterpillars that eat leaves, borers like emerald ash borer that attack the wood of the tree, and sap suckers like scale ...

Unfortunately, many pests love fruit trees and can easily damage leaves and spoil harvests. However, there are ways to get rid of these problematic visitors—without using harmful pesticides. For ...