Evaluation of a New Formulation of Permethrin Applied by Water-Based Thermal Fogger AgainstAedes albopictusin Residential Communities in St. Augustine, Florida

Abstract

The efficacy of a new water-based formulation containing 30% permethrin and 30% piperonyl butoxide against laboratory and field populations of Aedes albopictus was evaluated in the laboratory, in semifield experiments, and in residential communities in St. Augustine, FL. In laboratory bottle bioassay, 3 doses (3.18 g/ml, 2.26 g/ml, and 1.59 g/ml) of the permethrin product resulted in 100% mortality of adult mosquitoes in 1 h. In semifield experiments, the insecticide sprayed by the water-based thermal fogger at 381.5 ml/min application rate caused 99% mortality of caged mosquitoes. At 24 h posttreatment in the residential communities, there was 79% and 83% reduction of the natural population (numbers) of adult Ae. albopictus and all adult mosquito species collected in BioGent (BG) sentinel traps baited with a BG lure in the 3 test sites, respectively. There was also a 79% reduction in the number of Ae. albopictus eggs collected in ovitrap used in the treated sites. The reductions were significant for adult Ae. albopictus and all mosquito species at 1 wk posttreatment, but no significant reduction was observed at 2-3 wk posttreatment. These findings demonstrate the effectiveness of the new water-based permethrin product against Ae. albopictus populations in residential communities.

Not in my backyard: effectiveness of outdoor residual spraying from hand-held sprayers against the mosquitoAedes albopictusin Rome, Italy

“…The adulticide tested provided an immediate relief from high mosquito abundance. As observed in previous studies focusing on the evaluation of adulticide performance, the reduction was not permanent, resulting in mosquito population recovery to pretreatment abundance after 10 days. This could lead private citizens to make frequent applications of freely purchasable adulticides, thus increasing the development of mosquito resistance .…”

Targeting a Hidden Enemy: Pyriproxyfen Autodissemination Strategy for the Control of the Container Mosquito Aedes albopictus in Cryptic Habitats

“…Adulticides are very effective in suppressing adult populations but populations tend to quickly rebound [6,7]. Source reduction by eliminating potential larval habitats is also a key element of mosquito control.…”

Characteristics and Efficacy of Three Commercial Handheld Thermal Foggers with Pyrethroid Insecticides Against Three Species of Mosquitoes

“…aegypti, reducing environmental impacts and costs. Alimi et al (2013) used water as a permethrin solvent with success from a thermal fogger on the container breeder Ae. albopictus.…”