Light response by Frankliniella occidentalis to white fluorescent light filtered through color films and ultraviolet- and blue light-emmiting diodes.

Abstract

Western flo pests worldwide. monitoring WFT were determined lwer thrips (WFT), Frankliniella occidentalis (Pergande), are economic A study was conducted to obtain efficacy data to help develop traps for population variations in the field and greenhouses. Spectral responses using blue sticky card (BC) traps equipped with light-emitting diodes (LEDs) in the field and a parti-colored light array (PLA) system in the laboratory under darkroom conditions. BC traps equipped with ultraviolet (UV) LEDs were more attractive to this thrips as compared with blue LEDs. Distances from the point of thrips release to the PLA affected the number of thrips caught independently of trap color.