Aedes albopictus is a primary nuisance pest and disease vector in China. Control of Ae. albopictus using current methods is difficult because of diverse larval breeding sites. In the present study, lambda-cyhalothrin was applied as a barrier spray to vegetation surrounding human dwellings for control of adult mosquito populations. Compared to the landing rate counts in the untreated control site, the barrier spray resulted in an 83–98% reduction of Ae. albopictus within 9 wk posttreatment. The study results indicate that lambda-cyhalothrin applied as a barrier spray to vegetation can reduce Ae. albopictus landing rates collections for more than 2 months.
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