Sticky Traps for Detection and Survey of Three Tephritids13

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Abstract
Five types of experimental sticky traps caught more native Mediterranean fruit flies (medflies), Ceratitis capitata (Wiedemann), than a standard 0.95-liter plastic trap when placed in cool leeward areas of Hawaii at an elevation of 366 m. A trap made of a rectangular board (hung vertically) covered with Stikem® and baited with 2 small separate squares of cane fiberboard impregnated with trimedlure or with a layer of trimedlure applied under the Stikem was the most effective. When the traps were placed at windward sea-level sites, 3 of the experimental traps were equal or superior to the standard in 5 tests made with released sterile medflies. Generally, the number of medflies caught was proportional to the rate of volatilization of the trimedlure. With melon flies, Dacus cucurbitae Coquillett, 3 of the experimental sticky traps (baited with cue-lure plus naled as the toxicant) caught more flies than the standard, but 2 (the coffee can and the V-shaped trap) were inferior. With a large population of oriental fruit flies, D. dorsalis Hendel, the same 2 traps and also the rectangular trap (baited with methyl cugenol plus naled) caught fewer flies than the standard, but two, the milk carton and the paired boards, caught as many as the standard.

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