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Publications (9)
A field study investigated penetration of outdoor ground ultra-low–volume (ULV) aerosol and thermal fog adulticide applications into a dwelling to control the dengue vector Aedes aegypti (L). Four applications of Kontrol 4-4 (4.6% permethrin active ingredient [AI], 4.6% piperonyl butoxide) at the maximum label rate were made at 25–30 m in front of...
The Asian tiger mosquito, Aedes albopictus, ranks among the most important vectors of dengue fever, Zika virus, and chikungunya virus. With no specific medications or vaccines available, vector control is the only way to combat these diseases. Autodissemination of the insect growth regulator pyriproxyfen (NyGuard®) from a point-source treatment was...
Because Aedes aegypti, a vector of dengue, chikungunya, and Zika viruses, exhibits resting and reproductive behaviors that present challenges to control them, pesticide application equipment available for vector control must be evaluated for their ability to control this species in a variety of cryptic environments. Five types of pesticide sprayers...
Fluorescent dyes are commonly used to help visualize insecticidal droplets or to trace movement of insecticides; however, the effect these dyes have on the insecticide's efficacy and droplet characteristics is unknown. This study evaluated the effects of mixing Uvitex OB fluorescent dye with 5 adulticides on their efficacy in a wind tunnel. Efficac...
Droplet spectra data were collected from spray equipment intended for use in vector control by the DoD pest management programs to determine if they produce droplets in the ultralow volume (ULV) spectrum. Droplets generated by 26 sprayers utilizing water+nonionic surfactant (NIS) and/or BVA-13 mineral oil were measured at various operating conditio...
The increasing range of Aedes albopictus, the Asian tiger mosquito, in the USA and the threat of chikungunya and dengue outbreaks vectored by this species have necessitated novel approaches to control this peridomestic mosquito. Conventional methods such as adulticiding provide temporary relief, but fail to manage this pest on a sustained basis. We...
Spray droplet size has long been recognized as an important variable that applicators of vector control sprays must be aware of to make the most effective spray applications. Researchers and applicators have several different techniques available to assess spray droplet size from spray nozzles. The objective of this study was to compare the droplet...
In an effort to improve application methods for controlling sand flies in desert environments, a hand-held ultra-low volume (ULV) aerosol generator , a truck-mounted ULV aerosol generator, and a hand-held thermal fogger were evaluated. The velocity and temperature of the air and characteristics of droplets generated by these aerosol generators were...