Tom from Vinemont Al writes
No, Helena Crossbow Herbicide is herbcide labeled for woody plants and brush. This is not an insecticide that will armyworms or other insects. Bifen IT is a popular choice for tent caterpillars aka armyworms and applied at the mix rate of 0.5 fl oz to 1 fl oz per gallon of water. Per the Bifen IT product label to treat for 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: 08/15/2021