Ed from Oklahoma City, Ok writes
Bifen L/P Insecticide Granules does include armyworms as a target pest on the label. Application rate of 1.15 lbs. per 1,000 sq. ft. To ensure optimum control when treating for armyworms, irrigate the treated area with up to 0.1 inches of water immediately after application to activate the insecticide.
Answer last updated on: 08/20/2021