The preferred host plants are corn, small grains and grasses. Damage consists of foliage consumption. Least preferred parts of the plants, such as stems and large leaf veins, will not be attacked unless caterpillars are near starvation. Control Armyworms should be controlled when they occur in large numbers or plant damage is becoming excessive. Preventive treatments normally are not justified because attacks are sporadic.
Early detection seems to work best and is achieved by frequent, thorough inspection of plants.
Follow all directions, particularly safety precautions, on the insecticide package label. Although any of the insecticides will control armyworms, not all are labeled for use on all host plants. Be sure to follow the information as it appears on the label. Insecticide label clearances are subject to change and changes may have occurred after this publication was printed. The pesticide USER is always responsible for the effects of pesticide residues on his own plants as well as problems caused by drift from his property to other properties or plants.