Solid Mallet TMR (trimedlure [TML], methyl eugenol [ME], raspberry ketone [RK]) wafers and Mallet CMR (ceralure, ME, RK, benzyl acetate) wafers impregnated with DDVP (2,2-dichlorovinyl dimethyl phosphate) insecticide were measured in traps as potential detection and male annihilation technique (MAT) devices. Comparisons were made with 1) liquid lure and insecticide formulations, 2) solid cones and plugs with an insecticidal strip, and 3) solid single and double lure wafers with DDVP for captures of Mediterranean fruit fly, Ceratitis capitata (Wiedemann); oriental fruit fly, Bactrocera dorsalis Hendel; and melon fly, B. Cucurbitae Coquillett. Bucket and Jackson traps were tested in a coffee plantation near Eleele, Kauai Island, HI (trials at high populations) and avocado orchards near Kona, HI Island, HI (trials at low populations). Captures of all three species with Mallet TMR were not different from Mallet CMR; therefore, subsequent experiments did not include Mallet CMR because of higher production costs. In MAT trials near Eleele, HI captures in AWPM traps with Mallet TMR wafers were equal to any other solid lure (single or double) except the Mallet ME wafer. In survey trials near Kona, captures of C. capitata, B. Cucurbitae, and B. dorsalis with Mallet TMR wafers were equal to those for the standard TML, ME, and C-L traps used in FL and CA. A solid Mallet TMR wafer is safer, more convenient to handle, and may be used in place of several individual lure and trap systems, potentially reducing costs of large survey and detection programs in Florida and California, and MAT programs in Hawaii.
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