Comparison of Modified CDC Gravid, BG-Bowl, and CDC Autocidal Gravid Ovitraps to Collect Gravid and Host-Seeking Aedes aegypti (Diptera: Culicidae) in Northeastern Florida
2021
Xue, Rui-De | Dilla, Jacob | Bangonan, Lea R.
There are several kinds of commercial traps available in the market for surveillance and control of female mosquitoes. Usually these traps target only host–seeking or gravid individuals but not both. This study examined whether CDC gravid, BG-Bowl, and a fan-operated CDC-autocidal gravid ovitrap, each baited with a BG lure and southern live oak (Quercus virginiana Mill.; Fagaceae) leaf litter infusion, could collect host-seeking and gravid Aedes aegypti (L.) (Diptera: Culicidae) simultaneously. These traps were evaluated initially in a semi-field environment that consisted of outdoor screened enclosures where 200 female Ae. aegypti were released (half were gravid). For the field study, traps were placed at 3 sites in downtown St. Augustine, Florida, USA. All traps captured host-seeking and gravid females in the semi-field enclosures, but some did not collect both physiological stages in the field study. Only the BG-bowl trap in the semi-field and field studies collected the greatest number of females that included host-seeking and gravid Aedes.
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