A field evaluation of two suggested Aedes triseriatus oviposition attractants.

Two reported oviposition attractants for Aedes triseriatus, fish oil emulsion and water of high optical density, were evaluated in ovitraps in the field. Solutions of fish oil emulsion at 1% repelled ovipositing mosquitoes, whereas water containing vegetable dye increased oviposition up to 4-fold over control traps. Laboratory bioassays with fish oil emulsion at both 1 and 5% confirmed the field results.