Entomopathogenic nematode for fall armyworm
In lawns, armyworm larvae move across the turf as a group and shelter in the thatch, where this ambushing nematode waits. UC IPM's turf rate covers cutworms and armyworms together, and Grewal (2001) lists fall armyworm among the turf armyworms for which S. carpocapsae is the best-matched nematode; no fall-armyworm trial figures were found, so treat the rate as an extension of that guidance. Apply at the first sign of a moving brown front, and keep the soil moist, because nematodes die quickly in dry, sunny turf.
Before you order
Sprayed or watered onto moist lawn and bed soil against pests that move on the surface: cutworms, armyworms, sod webworms, billbugs and flea larvae outdoors. How it works, how to tell it has established and the supplier list are on the full Steinernema carpocapsae profile.
How many do I need?
Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →
Other controls for fall armyworm
- Bacillus thuringiensis kurstakiMicrobial insecticide · Label rate — DiPel DF lists armyworms (Spodoptera spp., including fall armyworm), 0.5–2 lb per acre on corn and turf; on several crops the label calls for the higher rates against Spodoptera. Check that a home product names armyworms
- Braconid waspsWild parasitoid · wild, attract it
- Ground beetlesWild predator · wild, attract it
- Orius insidiosusPredatory bug · 1–2 /m² per release; up to 10 /m² on hot spots