HORTICULTURAL ENTOMOLOGY Evaluation of Methyl Eugenol and Cue-Lure Traps With Solid Lure and Insecticide Dispensers for Fruit Fly Monitoring and Male Annihilation in the Hawaii Areawide Pest Management Program

Methyl eugenol (ME) and cue-lure (C-L) traps with solid lure dispensers were deployed in areaswith low and high populations of oriental fruit ßy,Bactrocera dorsalis (Hendel), and melonßy,Bactrocera cucurbitae(Coquillett), respectively. In low-density areas, standard Jackson traps or Hawaii Fruit Fly Areawide Pest Management (AWPM) traps with FT Mallet ME wafers impregnated with dimethyl dichloro-vinyl phosphate (DDVP) or AWPM traps with Scentry ME cones and vapor tape performed equally as well as standard Jackson traps with liquid ME/C-L and naled. Standard Jackson traps orAWPMtrapswithFTMalletC-Lwafers impregnatedwithDDVPorAWPM traps with Scentry C-L plugs with vapor tape performed equally as well as standard Jackson traps with a lure-naled solution. In high density areas, captures with traps containing FTMallet wafers (ME and C-L) outperformedAWPMtrapswith Scentry cones and plugs (MEandC-L)withDDVP insecticidal strips over a 6-mo period. Captures of B. dorsalis and B. cucurbitae with wafers containing both ME and raspberry ketone (FT Mallet MC) were equivalent to those containing separate lures. From a worker safety andconvenience standpoint, FTMalletMEandC-LwaferswithDDVPorScentryplugs, with or without DDVP vapor tape, are more convenient and safer to handle than standard liquid insecticide formulations used for monitoring and male annihilation programs in Hawaii, and for detections traps used on the U.S. mainland. Furthermore, the FT Mallet MC wafer might be used in a single trap in place of two separate traps for detection of both ME and C-L responding fruit ßies.