Field Trapping Bactrocera latifrons (Diptera: Tephritidae) with Select Eugenol Analogs That Have Been Found to Attract Other ‘Non-Responsive’ Fruit Fly Species.

<italic>Bactrocera latifrons</italic> (Hendel) (Diptera: Tephritidae) is a pest fruit fly species native to Oriental Asia which has invaded and established in Hawaii and Tanzania and has been recovered in detection trapping in California. It is largely non-responsive to the male lures cuelure and methyl eugenol. Alpha-ionol + cade oil is a moderately effective male <italic>B. latifrons</italic> attractant, but is not as attractive as cuelure or methyl eugenol are to other fruit fly species. An improved attractant is therefore desired. With the recent success in finding other non-responsive fruit fly species attracted to isoeugenol, methyl-isoeugenol, or dihydroeugenol in Australia and other countries, we wanted to assess whether <italic>B. latifrons</italic> might also respond to these “eugenol analogs.” Working with wild <italic>B. latifrons</italic> populations in Hawaii, we assessed the relative catch of <italic>B. latifrons</italic> in traps baited with the eugenol analogs with catch in traps baited with alpha-ionol, alpha-ionol + cade oil, or alpha-ionol + eugenol. Catch was significantly higher in traps baited with alpha-ionol + cade oil relative to traps with any of the other baits. There was, though, some male <italic>B. latifrons</italic> catch in traps baited with dihydroeugenol or isoeugenol but none in traps baited with methyl-isoeugenol. [ABSTRACT FROM AUTHOR]