Steinernema feltiae to control Western flower thrips (Frankliniella occidentialis)in potted chrysanthemum

Abstract: Entomopathogenic nematodes such as a Steinernema feltiae are used in a variety ofcommercial growing systems to control a number of pests as part of an integrated pestmanagement program. One such use is S. feltiae against Western flower thrips (Frankliniellaoccidentalis, WFT). Against this pest growers are using both foliar and soil applciations to targetthe different susceptible lifestages. Two field trials were carried out to investigate the efficacy ofregular foliar applciations of a commercial formulation of S. feltiae (Nemasys® F, BeckerUnderwood) against WFT in potted chrysanthemum compared to a standard chemical andalternative bicontrol Beauveria bassiana strain GHA (BotaniGard, Bioworks).