Oak Loopers Defoliating Yard: Spinosad for Small Trees

Backyard covered in green caterpillars on webs. Oak loopers (moth larvae). Homeowner desperate.

Large Tree Reality

Treating mature oaks = difficult, expensive. Most do nothing. Healthy oaks withstand heavy defoliation; recover in 1-2 years.

Small Tree Option

• Spinosad (low-tox, microbial): Effective on caterpillars. See livingwithbugs.com/spinosad.html.
• Apply when larvae small, foliage accessible.

Don't panic. Nature usually balances it.