Abstract
AbstractA marking and recapture sampling method was developed that shows promise for studying the dispersal behavior of small and delicate arthropods. Adult sweetpotato whiteflies, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), were externally marked with a liquid fluorophore that glows brightly under ultraviolet (UV) light. Then, a series of simulated recapture tests on fluorophore‐marked whiteflies using yellow sticky cards were conducted. The marked whiteflies captured on the sticky cards were detected by direct visual inspection of photographs taken of the cards under white light and UV light. Whitefly counts taken under white and UV light were almost identical, implying high marking efficacy and visual distinctiveness. These results suggest that this fluorophore marking and sampling method could eliminate the tedious task of removing specimens from sticky cards and examining them individually for the presence of a mark.
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