Abstract

The dispersal of adult Anopheles quadrimaculatus Say was evaluated by techniques involving wild capture, fluorescent marking, release, and recapture of adult mosquitoes from a naturally occurring population in the rice-growing region of Arkansas. Males and females dispersed mean distances of 1.05 and 1.84 km, respectively, from the release point over a 2-d period. The maximum time from release to recapture was 13 d. A recommendation for insecticidal treatment of at least 3.4 km 2 surrounding any targeted source for this mosquito was made based on results of the study.

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