ATTRACTION OF HAWAIIAN AQUATIC INSECTS TO PEST TEPHRITID PARAKAIROMONE LURES

Attraction to 3 pest tephritid parakairomone lures (methyl eugenol, tr imedlure, and cuelure) or aquatic insects associated with swift-water habitat in representative Hawaiian stream systems is evaluated. Result s indicate no attractancy of aquatic insects to methyl eugenol or cuel ure. Attractancy is suggested for Hawaiian Orthocladiinae (Biptera: Ch ironomidae) to trimedlure; however, significant negative effects to st ream insect communities are unlikely because total captures were low a nd likely limited to this family. High variability in aquatic insect r esponse, both within and between streams as well as possible susceptib ility to bucket traps suggest that weak-acting lures such as trimedlur e are influenced by multiple variables (trap type and placement, seaso n, insect phenology, population characteristics and dynamics, and stre am ecotype).