Fall army worm can only be effectively controlled while the larvae are small. Early detection and proper timing of an insecticide application are critical.
Farmers should pay close attention to late planted fields or fields with a history of these problems.
- Start monitoring for signs and symptoms of FAW one week after germination for early detection and effective control
- Look for egg masses on the stem, upper / lower surfaces of the leaves
- Look for patches of small “window pane” holes to large ragged elongated holes on the leaves emerging from the whorl
- Look for light green to dark brown caterpillars with stripes down bodies on the leaves or in the whorl
- Look for saw dust-like frass
- Handpick and destroy egg masses and caterpillars if found.