Cankerworms: What Are They?
Have you heard of cankerworms? If you haven’t, you’ve undoubtedly seen them, especially in the spring, swinging from tree to tree as they defoliate large groups of trees at a time. What are cankerworms exactly? What does it mean for you as a homeowner? And how can you protect yourself and your trees against these creatures if they are causing a problem?
Cankerworms: What Are They?
Cankerworms, or “inchworms,” are spring caterpillars that are light green to brown. They’re different from ordinary caterpillars in that they have fewer legs than most, with only two feet on their abdomens, resulting in odd movement.
Cankerworms hatch just when the trees are starting to bud in the spring. They feed on broad-leaf trees like elm, oak, boxelder, maple, and ash. They can defoliate a large swath of trees, but you’ll only notice it if the trees they’re attacking are stressed by drought or disease.
Another type of … Read Full Post »