Question: There is some type of caterpillar eating all the leaves of my Catalpa tree. What is the recommended course of action? Answer: At this time of year, there are several large, varied-color ...

Hardwood trees such as birch, maple or oak are in danger because of a little bug—the spongy moth—native to parts in Europe, but has been in the U.S. for over 100 years. The spongy moth is making its ...

Insects that eat leaves create different kinds of damage. While you will not always see the bug that's doing the eating, you will almost certainly notice the destruction. Here's how to identify the ...

Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park discuss a tree-related topic from general care and planting tips to how ...

This guide to green caterpillars helps you easily identify the green caterpillar you've found in your yard or garden. While it's nearly impossible to include every green caterpillar species out there, ...