A NONDESTRUCTIVE SAMPLING TECHNIQUE FOR SPODOPTERA-MAURITIA (BOISDUVAL) (LEPIDOPTERA, NOCTUIDAE) AND HERPETOGRAMMA-LICARSISALIS (WALKER) (LEPIDOPTERA, PYRALIDAE) IN TURF

Experiments were conducted using chemical irritants to develop a non-d estructive sampling technique for pests of high quality turf and lawn. POW detergent at a concentration of 35 mt in 3.5 L of water applied t o an area of 1,600 cm(2) was the most effective for sampling Spodopter a mauritia and Herpetogramma licarsisalis and resulted in 84% of S. ma uritia larvae surfacing within 4 min of application. No larvae surface d after 4 min. Kendon pyrethrin SF applied at a concentration of 0.46 mt in 3.5 L of water resulted in similar numbers of larvae surfacing r elative to 35 mt POW detergent. However, larvae took up to 20 min to s urface. Formaldehyde and the pyrethroid, Mavrik(R)AF did not cause S. mauritia and N. licarsisalis larvae to surface.