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United States Department of Agriculture

Agricultural Research Service

Title: A Field Comparison of Chemical Attractants and Traps for Caribbean Fruit Fly, Anastrepha Suspensa (Loew) (Diptera: Tephritidae), in Florida Citrus

Authors
item Hall, David
item Burns, Ed - FLORIDA DEPT OF AG
item Jenkins, Calie - FLORIDA DEPT OF AG
item Hibbard, Ken - FLORIDA DEPT OF AG
item Harris, Don - FLORIDA DEPT OF AG
item Sivinski, John
item Nigg, Herb - UNIV OF FLORIDA

Submitted to: Journal of Economic Entomology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 27, 2005
Publication Date: September 10, 2005
Citation: Hall, D.G., Burns, R.E., Jenkins, C.C., Hibbard, K.L., Harris, D.L., Sivinski, J.M., Nigg, H.N. 2005. A field comparison of chemical attractants and traps for Caribbean Fruit Fly, Anastrepha suspensa (Loew)(Diptera: Tephritidae), in Florida citrus. Journal of Economic Entomology. 98(5):1641-1647.

Interpretive Summary: Field studies were conducted in Florida citrus groves to compare different traps and attractants for Caribbean fruit fly. In one study on wild flies, the most effective and least complex trap-lure combination tested was the Multi-Lure with propylene glycol baited with ammonium acetate and putrescine. This trap-lure combination captured significantly more flies than the standard glass McPhail baited with torula yeast-borax in water. All of the trap-lure combinations were female-biased. A second study on lab-reared, irradiated flies indicated no significant differences among these trap-lure combinations with respect to number of flies recaptured, although rankings based on mean numbers of flies recovered/trap/day supported results of the first study. The particular release strategy used may have confounded results of the second study. Future release/recovery studies would benefit from research on release strategies. The percentage of flies recaptured that were female (83.0%, SEM 0.9) was similar to the percentage observed in the first study. The results of the two studies as they pertain to the development of a toxic bait station for A. suspensa are reviewed.

Technical Abstract: Field studies in citrus were conducted to compare the following as attractants for Caribbean fruit fly, Anastrepha suspensa (Loew): torula yeast-borax; propylene glycol (10%); a two-component lure consisting of ammonium acetate and putrescine; a two-component lure consisting of ammonium bicarbonate and putrescine; and a three-component lure consisting of ammonium bicarbonate, trimethylamine, and putrescine. Various combinations of these in glass McPhail, plastic McPhail-type (Multi-Lure') and sticky panel traps were investigated in two replicated studies. In one study on wild flies, the most effective and least complex trap-lure combination tested was the Multi-Lure with propylene glycol baited with ammonium acetate and putrescine. This trap-lure combination captured significantly more flies than the standard glass McPhail baited with torula yeast-borax in water. All of the trap-lure combinations were female-biased, with an overall average of 80.8% (SEM 1.4) flies captured being female. A second study on lab-reared, irradiated flies indicated no significant differences among these trap-lure combinations with respect to number of flies recaptured, although rankings based on mean numbers of flies recovered/trap/day supported results of the first study. Weekly percentage recovery of flies during the study was low, possibly due to our fly release strategy. Future release/recovery studies would benefit from research on release strategies. The percentage of flies recaptured that were female (83.0%, SEM 0.9) was similar to the percentage observed in the first study. The results of the two studies as they pertain to the development of a toxic bait station for A. suspensa are reviewed.

Last Modified: 7/22/2014
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