A trap that contained 2.0 g of trimedlure in the adhesive material trapped more male Mediterranean fruit flies, Ceratitis capitata (Wiedemann), than the standard Steiner trap. It was especially effective during the 1st 3 wk of exposure but remained effective for 6 wk. The principle of incorporating an attractant into sticky material can be applied to other traps.
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Nakagawa et al. (1975) studied this question.