| Title: | Cucumber Lure Trapping of Zeugodacus cucurbitae (Diptera: Tephritidae) in Hawaii and Taiwan: Longevity and Nontargets Captures |
| Author(s): | Jang EB; Carvalho LA; Chen CC; Siderhurst MS; |
| Address: | "USDA-ARS, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, USA. Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan, ROC. Department of Chemistry, Eastern Mennonite University, Harrisonburg, VA, USA. Corresponding author" |
| ISSN/ISBN: | 1938-291X (Electronic) 0022-0493 (Linking) |
| Abstract: | "The melon fly, Zeugodacus cucurbitae (Coquillett), is a serious pest of tropical horticulture, causing damage to cucurbits, tree fruits, and fruiting vegetables. Melon flies are especially attractive to freshly sliced cucumber, and this has led to the identification of a nine-compound kairomone lure that can be used to trap both female and male flies. In this study, a seven-compound lure, containing (Z)-6-nonenal, (Z)-6-nonen-1-ol, 1-octen-3-ol, (E,Z)-2,6-nonadienal, (E)-2-nonenal, hexanal, and 1-hexanol, was formulated into PVC plugs (100 or 300 mg/plug) for field testing in wet traps. In Hawaii, 100 mg of the seven-compound cucumber lure, loaded in either plugs or glass capillaries, attracted more flies than traps containing Solulys protein over a 9-wk period. However, both cucumber lure formulations showed marked declines in the number of flies trapped after 3 wk. Similar results were obtained during a 6-wk field trial using 100 mg cucumber lure plugs in Taiwan. Increasing the cucumber lure loading rate to 300 mg/lure increased the effective trapping life of the attractant during a second 9-wk field trial conducted in Hawaii. The synthetic cucumber lure showed female-biased sex ratios in trap captures in the Taiwanese and second Hawaiian field trials. Protein lures captures were female-biased in all three field trials. Wet traps in Hawaii containing the cucumber lure were found to capture 25-30 nontarget insects/trap/week, less than half that captured with Solulys. Captured nontarget insects represented 37 families in 10 orders. The most common families caught were Ceratopogonidae ( approximately 9 flies/trap) and Gryllidae ( approximately 7 crickets/trap)" |
| Keywords: | Animals *Chemotaxis Cucumis sativus/chemistry Female Hawaii Insect Control/*methods Male Pheromones/*pharmacology Sex Factors Taiwan Tephritidae/*physiology Time Factors Melon fly Tephritidae Zeugodacus cucurbitae attractant kairomone; |
| Notes: | "MedlineJang, Eric B Carvalho, Lori A F N Chen, Chung-Chien Siderhurst, Matthew S eng England 2016/12/28 J Econ Entomol. 2017 Feb 1; 110(1):201-207. doi: 10.1093/jee/tow268" |
