Location: Subtropical Horticulture Research
2013 Annual Report
Field tests of plant essential oil lures for caribflies. Field trials were conducted that evaluated effect of addition of plant essential oils to traps baited with synthetic food-based attractants for caribflies. Initial tests found reduced capture in traps with pure essential oil plus food-based lures, but subsequent tests found that diluted essential oils may increase capture of caribflies. This information will be used to identify improved attractants for this pest and may lead to improved approaches for control of caribflies.
Field tests of baits for pest drosophilid fruit flies. Field tests were ongoing to evaluate liquid baits as lures for the pest drosophilid African fig fly. Field tests were conducted to test combinations of wine and vinegar, which have been found to be successful for other pest drosophilids. This information will be used to develop baits for this pest to monitor new invasions in areas currently free of this pest.
Laboratory and field tests of effect of surfactants/preservatives on efficacy of fermenting baits. Addition of standard surfactants/preservatives used with aqueous protein baits for fruit flies have effects on fermenting baits that may increase or decrease effectiveness. Research, which included chemical analysis, EAG response, quantification of fermentation rate, and laboratory tests, was used to determine the best combinations. These combinations were then tested in the field and the most effective baits were identified. This information will be used to further understand fruit fly response to these baits and to identify improved attractants.
Evaluation of essential oils for attraction of redbay ambrosia beetle. Previous research by SHRS scientists evaluated the efficacy of two commercial lures for redbay ambrosia beetle (RAB). Phoebe oil lures were highly effective, lasting 10-12 wk in Florida, but unfortunately are no longer available. Manuka oil lures were found to lose attraction after 2-3 wk, but by default, are the current lures used for detection of RAB. Therefore, research is underway to evaluate other plant essential oils for improved attraction of RAB. In addition, field tests are being conducted to determine if ethanol (a common attractant for other ambrosia beetles) will synergize attraction of essential oil lures and further improve RAB detection.
Amarasekare, K.G., Mannion, C.M., Epsky, N.D. 2012. Developmental time, longevity, and lifetime fertility of three introduced parasitoids of the mealybug Paracoccus marginatus (Hemiptera: Pseudoccidae). Biological Control. 41:1184-1189.
Brar, G. S., J. L. Capinera, S. McLean, P. E. Kendra, R. C. Ploetz, and J. E. Peña. 2012. Effect of trap size, trap height, and age of lure on sampling Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae), and its flight periodicity and seasonality. Florida Entomol. 95 (4): 1003-1011.
Kendra, P.E., Montgomery, W.S., Niogret, J., Deyrup, M.A., Guillen, L., Epsky, N.D. 2012. Xyleborus glabratus, X. affinis, and X. ferrugineus (Coleoptera: Curculionidae: Scolytinae): Electroantennogram responses to host-based attractants and temporal patterns in host-seeking flight. Environmental Entomology. 41(6):1597-1605.
Kendra, P.E., Montgomery, W.S., Niogret, J., Epsky, N.D. 2013. An uncertain future for American Lauraceae: A lethal threat from redbay ambrosia beetle and laurel wilt disease.. American Journal of Plant Sciences. 4 (3A) 727-738.
Pena, J.E., Carrillo, D., Duncan, R.E., Capinera, J.L., Brar, G., Mclean, S., Arpaia, M.L., Focht, E., Smith, J.A., Hughes, M., Kendra, P.E. 2012. Susceptibility of Persea spp. and other Lauraceae to attack by redbay ambrosia beetle, Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae). Florida Entomologist. 95(3):783-787.
Kendra, P.E., Roda, A.L., Montgomery, W.S., Schnell, E.Q., Niogret, J., Epsky, N.D., Heath, R.R. 2013. Signature chemicals for detection of citrus infestation by fruit fly larvae (Diptera: Tephritidae). CABI(Council of Applied Biology International, Oxford, United Kingdom. pp228-239 in J>E> Pena (ed.).