“…Thus, effective and long acting mass trapping would help to eliminate or reduce the use of chemical treatments. The Medfly, as with most Tephritid flies of economic importance, strongly responds to stimuli, such as food attractants (Delrio and Ortu 1988, Heath et al, 1995, Zervas 1993, Bakri et al, 1998, Epsky et al, 1999, Gazit et al 1998), visual attractants (Cytrynowicz et al, 1982 and sex attractants (Cunningham, 1989). An important role seems to be played by optical and chemical stimuli from the host fruits (Levinson et al, 1990, Katsoyannos, 1987.…”