Hiramoto, Matthew K.Arita-Tsutsumi, LornaJang, Eric2007-06-232007-06-232006-12Hiramoto MK, Arita-Tsutsumi L, Jang E. 2006. Test of effectiveness of newly formulated plastic matrix with methyl eugenol for monitoring Bactrocera dorsalis (Hendel) populations. Proc Hawaiian Entomol Soc 38:103–110.0073-134Xhttp://hdl.handle.net/10125/202Methyl eugenol (4-allyl-1-2-dimethoxybenzene-carboxylate) is a commonly occurring plant phenylpropanoid which is a highly attractive lure to the male oriental fruit fly, Bactrocera dorsalis (Hendel). Twelve plastic bucket traps were hung in a row of Norfolk pine trees. Each trap contained either 4 ml of methyl eugenol on a cotton dental wick, 2 g methyl eugenol plastic matrix (hereafter called a “plug”), or an untreated dental wick (as a control). After 5 months and 12 days the control wick was charged with 2 ml of liquid methyl eugenol and was subsequently recharged every two weeks. Results showed that the 4 ml treated wick and the 2 gram plastic methyl eugenol plug had no significant difference in catch per trap per day for the first 2 months. Although the plug actually averaged higher catch the difference was not significant by analysis of variance with or without repeated measures. Using the repeated measures analysis, date was the most significant factor, although there was no interaction between the effects of lure and date. In the subsequent 2 months, the plastic lures continued to catch at a declining rate (mean 36.7 ± 15.0% of the 4 ml lure on a cotton wick). The data suggest that the plastic lure could be used for 2 months where temperatures are not extreme. In exclusion programs maximum rate of catch is a requirement, but that is not necessary for population suppression. For the latter purpose, the 2 ml methyl eugenol plug could be used longer than two months, or the matrix could be adjusted to hold a larger volume of lure. A plug containing 5 g of methyl eugenol was able to catch flies efficiently for one year. Fly capture was more efficient in one-way entrance traps than in traps containing toxicant.en-USArea Wide ProgramBactrocera dorsalisinsect attractantsinsect trapsmalesmethyl eugenolpest control programspest monitoringplasticsinsect controlArticle