The attraction of male Ceratitis capitata (Wiedemann) to tert-pentyl 4(and 5)-chloro-trans-2-methylcyclohexanecarboxylate (or pentamedlure) was compared to its attraction to trimedlure to establish the suitability of pentamedlure as a possible alternate for trimedlure in applications that use a cotton dental-roll wick dispenser. Results from field tests with released sterile C. capitata showed that pentamedlure, applied to cotton dental roll wicks, was not only comparable to trimedlure in attractiveness but was more persistent. Batch to batch variations in isomer distribution of pentamedlure appeared to have little effect on attraction. Dose-response data showed that pentamedlure, applied at 0.02 and 0.16 ml/wick, initially caught more flies than trimedlure at comparable doses. Moreover, initial catches for pentamedlure for most dosages tested exceeded, but not significantly, initial catches for trimedlure despite a much higher load (2 ml/wick). Trimedlure initial catches within a natural population of wild C. capitata were significantly higher than pentamedlure catches at a comparable dosage (0.2 ml lure/wick). However, pentamedlure-treated wicks were 2 to 3 times more persistent than wicks treated with trimedlure.

Electroantennograms (EAGs) of unmated laboratory-reared male and femaleCeratitis capitata (Wiedemann) were recorded in response to the attractant trimedlure [tert-butyl 4(and 5)-chloro-trans-2-methylcyclohexane-1-carboxylate] and its fourtrans isomers. For both sexes, the magnitude of the EAG response was relatively low as compared to other previously tested compounds (i.e., plant volatiles). Dosage-response curves generated for all TML isomers revealed that flies responded to increasing dosages over a relatively narrow range (two to three log steps). Responses for both sexes peaked at ca. 10 μg dose for all isomers. Antennal response in males was greatest to the C isomer followed by the B1, A, and B2 isomers, while responses of females were greatest for the A isomer followed by B1, C, and B2. Both sexes exhibited a long recovery period for the response potential to return to baseline at doses above 1 μg for all of the isomers tested, except for B2. The low EAG sensitivity to trimedlure and the apparent EAG selectivity to the C isomer in males are discussed in relation to the known field attractancy of males to the C, A, B1, and B2 isomers.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnantiomers of the biologically active components of the insect attractant trimedlurePhilip E. Sonnet, Terrence P. McGovern, and Roy T. CunninghamCite this: J. Org. Chem. 1984, 49, 24, 4639–4643Publication Date (Print):November 1, 1984Publication History Published online1 May 2002Published inissue 1 November 1984https://pubs.acs.org/doi/10.1021/jo00198a012https://doi.org/10.1021/jo00198a012research-articleACS PublicationsRequest reuse permissionsArticle Views488Altmetric-Citations20LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Journal Article Japanese Beetles: Attractancy of Mixtures of Lures Containing Phenethyl Propionate and Eugenol Get access T. L. Ladd, Jr., T. L. Ladd, Jr. Agric. Res. Serv., USDA Search for other works by this author on: Oxford Academic PubMed Google Scholar C. R. Buriff, C. R. Buriff Agric. Res. Serv., USDA Search for other works by this author on: Oxford Academic PubMed Google Scholar Morton Beroza, Morton Beroza 6 Agric. Res. Serv., USDA 6Organic Chemical Synthesis Laboratory, Agric. Environ. Quality Inst., Beltsville, MD 20705. Retired. Present address: 821 Malta Lane, Silver Spring, MD 20901. Search for other works by this author on: Oxford Academic PubMed Google Scholar Terrence P. McGovern Terrence P. McGovern Agric. Res. Serv., USDA Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 68, Issue 6, 15 December 1975, Pages 819–820, https://doi.org/10.1093/jee/68.6.819 Published: 15 December 1975 Article history Received: 14 March 1975 Published: 15 December 1975

Journal Article Japanese Beetles: Phenethyl Esters as Attractants Get access T. L. Ladd, Jr., T. L. Ladd, Jr. Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar Terrence P. McGovern, Terrence P. McGovern Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar Morton Beroza, Morton Beroza Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar B. G. Townshend, B. G. Townshend Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar M. G. Klein, M. G. Klein Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar K. O. Lawrence K. O. Lawrence Entomology Research Division, Agric. Res. Serv., USDA. Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 66, Issue 2, 16 April 1973, Pages 369–370, https://doi.org/10.1093/jee/66.2.369 Published: 16 April 1973 Article history Received: 14 August 1972 Published: 16 April 1973

When 141 chemicals structurally related to triacetin were evaluated in the laboratory as inducers of oviposition in the corn earworm, Heliothis zea (Boddie), 23 proved to be more active than triacetin. Most activity resulted from an arrestant effect since only a slight stimulation of oviposition was observed. The compounds were not active in the field.

Davis et al. (1969) determined that heptyl butyrate (HB) is a highly specific attractant for yellowjackets, especially for the common western species, Vespula pensylvanica (Saussure). This lure appears to be superior to 2,4-hexadienyl butyrate, the compound used as the standard of comparison in the several studies by Davis et al. (1967, 1968) and by McGovern et al. (1970). Therefore, for the past 3 years, we have conducted tests designed to compare heptyl butyrate with another promising lure, octyl butyrate (OB).

Journal Article Electrophysiological Response of Antennae of the Japanese Beetle to Attractants and Related Compounds Get access Victor Adler, Victor Adler Entomology Research Division, Agr. Res. Serv., USDA, Beltsville, Maryland 20705 Search for other works by this author on: Oxford Academic PubMed Google Scholar Morton Beroza, Morton Beroza Entomology Research Division, Agr. Res. Serv., USDA, Beltsville, Maryland 20705 Search for other works by this author on: Oxford Academic PubMed Google Scholar T. P. McGovern T. P. McGovern Entomology Research Division, Agr. Res. Serv., USDA, Beltsville, Maryland 20705 Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 65, Issue 3, 1 June 1972, Pages 921–923, https://doi.org/10.1093/jee/65.3.921 Published: 01 June 1972 Article history Received: 18 August 1971 Published: 01 June 1972

Juvenile hormone activity of 42 mixed ethers containing an aromatic and a terpenoid moiety was compared with that of four 3,4-(methylenedioxy) phenyl analogues against the large milkweed bug, Oncopeltus fasciatus (Dallas), and the yellow mealworm, Tenebrio molitor L. Wide differences in activity between the 2 species were observed for the compounds with 17 different aromatic substituents. Several ethers were more active than their 3,4-(methylenedioxy) phenyl analogues.

Twenty-three chemicals that included structural features of phenethyl butyrate or methyl cyclohexanepropionate were tested in combination with eugenol (4-allyl-2-methoxyphenol) (9:1) as attractants for Popillia japonica Newman. Thirteen were more attractive than the present standard, phenethyl buytrate + eugenol (9:1). The best lure, phenethyl propionate + eugenol was as much as 8.7 times more attractive than the standard and 2.4 times more attractive than methyl cyclohexanepropionate + eugenol. It is also about 5 times longer lasting than methyl cyclohexanepropionate.

Sesamex (2-(2-ethoxyethoxy) ethyl 3,4-(methylenedioxy) phenyl acetal of acetaldehyde), a synergist for pyrethrins and carbamates, and 82 related compounds were tested against Tenebrio molitor L. for juvenile hormone activity. Six of the compounds were as active or more active than sesamex or farnesyl methyl ether, the standard. Since 4 of the 6 did not have a (methylenedioxy) phenyl group but did have other meta- or para-substituted phenyl groups, high juvenile hormone activity in the yellow mealworm can be obtained with compounds having phenyl substituents other than the methylenedioxy group.

When mixtures of chemicals having ingredients that differ widely in volatility are dispensed as lures from the standard dental roll wick and reservoir used in traps for popillia japonica Newman, the composition changes during the evaporation process. Since mixtures of chemicals in different ratios are not equally attractive, a wick was devised to maintain the composition of the lure mixture fairly constant and at a level giving maximum attraction despite gross differences in the volatilities of the ingredients. The wick incorporated a restriction that prevented back diffusion of lure from the exposed section and thereby prevented changes in lure composition.