TRAPPING KISSING BUGS USING YEAST VOLATILES AS ODOR BAITS: A COMPARATIVE STUDY

picture of Bianca Demara presenting his/her poster: TRAPPING KISSING BUGS USING YEAST VOLATILES AS ODOR BAITS: A COMPARATIVE STUDY

Bianca Demara , Teresa L. Gregory, Carolina E. Reisenman, John G. Hildebrand

TRAPPING KISSING BUGS USING YEAST VOLATILES AS ODOR BAITS: A COMPARATIVE STUDY

Blood-sucking kissing bugs (Hemiptera: Reduviidae) are vectors of Chagas disease, a parasitic disease endemic in Mexico, Central, and South America. In Arizona, Triatoma rubida has been shown to be a potential vector of Chagas disease. The bite of the insect can also cause serious allergic reactions. Because there is no vaccine to prevent Chagas disease or the allergic reactions from the kissing bug bite, we want to find a method of monitoring/trapping kissing bugs. Live cultures of baker’s yeast have been shown to attract various triatomine species, including Rhodnius prolixus, an efficient vector of Chagas disease in Northern South America. Whether T. rubida is attracted to baker’s yeast is not known. Therefore, we compared the attractiveness of yeast volatiles for T. rubida and R. prolixus using a previously reported bowl-trap design, and a newly-developed pit-trap design. We found that T. rubida was attracted to the yeast traps, although not nearly as much as with R. prolixus. We also found that our new pit-trap design was as effective as the bowl-trap design to capture R. prolixus. Although our results indicate that odor-baited traps could be used to capture T. rubida, further testing needs to be conducted. At this point, we will continue to conduct experiments mainly with the pit-trap design using several host-derived odors and odorant mixtures. Testing the trap designs with T. rubida will continue during T. rubida’s 2013 dispersal season in Tucson, Arizona.

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