What spray to use to get rid of worms

Question From: Scottsdale, Arizona, United States
Q: I have an infestation of small catepillars eating the leaves on my three Mtn Laurel trees. What spray can I use to get rid of the worms.

A: Ron, Take some closeup photos of the critters to you local independent garden center for an accurate ID. If your tree is very large you may need to have a professional do the job. To find a certified arborist in your area go to www.tcia.org. Best And Happy Yardening, Nancy.