Stan from Jacksonville Illinois writes
Wondercide Outdoor Pest Control - Lawn and Landscape is not labeled for armyworms.
Talstar P is a popular choice for tent caterpillars aka armyworms. Directly spray the plant foliage and nest. The larvae are usually easy to contact if spraying is done in the late morning when the larvae congregate on the tent surface to warm in the sun. Mechanical control is also helpful with this pest. The egg masses are easy to spot after the leaves have dropped in the fall. Simply clip off and crush or drop into a bucket of soapy water.
Answer last updated on: 07/31/2022
