title: Preferences of matedHeliothis virescens andH. subflexa females for host and nonhost volatiles in a flight tunnel.
abstract: In flight-tunnel bioassays, mated femaleHeliothis subflexa (Gn.) moths demonstrated in dual-choice tests a significant preference for volatiles from an extract of their only known host,Physalis spp. (groundcherry). However,H. virescens (F.), a polyphagous species, responded positively by anemotaxis to extracts from susceptible tobacco, cotton,Desmodium tortuosum (host plants), and groundcherry, a nonhost.H. virescens females did not fly to volatiles emanating from an extract of a resistant tobacco cultivar.
authors.affiliation: Agricultural Research Service, U. S. Department of Agriculture, Insect Attractants, Behavior, and Basic Biology Research Laboratory, 32604, Gainsville, Florida.
authors.forename: F C
authors.initials: FC
authors.lastname: Tingle
authors.forename: E R
authors.initials: ER
authors.lastname: Mitchell
authors.forename: R R
authors.initials: RR
authors.lastname: Heath