Abstract
AbstractFrankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) (western flower thrips, WFT) is a key pest in a range of crops worldwide. Anthocorid species (Hemiptera) are important natural enemies of thrips. Several experiments were undertaken to determine whether a thrips lure, methyl isonicotinate (MI), affected the behaviour of WFT and anthocorids found in outdoor crops. Currently, this volatile compound is used in conjunction with sticky traps for monitoring thrips predominantly in greenhouses in Northern Europe. In the present study, in a nectarine [Prunus persica (L.) (Rosaceae)] orchard and an outdoor capsicum [Capsicum annuum L. (Solanaceae)] crop in Spain, blue sticky and white water traps with MI caught significantly more WFT than traps without MI. The volatile compound also significantly increased both blue sticky and white water trap capture of anthocorids – predominantly Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) – in the capsicum crop. These results indicate that the behaviour of both WFT and O. laevigatus were altered by the presence of the compound and suggest there is potential to develop novel tools based on MI in conjunction with biological control strategies for thrips management.
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