Accession Number : ADA617596


Title :   Truck-mounted Area-wide Application of Pyriproxyfen Targeting Aedes aegypti and Aedes albopictus in Northeast Florida


Descriptive Note : Journal article


Corporate Author : NAVY ENTOMOLOGY CENTER OF EXCELLENCE JACKSONVILLE NAS FL


Personal Author(s) : Doud, Carl W ; Hanley, Anthony M ; Chalaire, Katelyn C ; Richardson, Alec G ; Britch, Seth C ; Xue, Rui-De


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a617596.pdf


Report Date : Dec 2014


Pagination or Media Count : 9


Abstract : This study was conducted to determine the efficacy of truck-mounted ultra-low volume applications of pyriproxyfen against Aedes aegypti larvae in artificial water containers and wild adult Ae. albopictus populations in an urban setting. The study was conducted over a 3.5-month period (June-October 2012), during which 3 pyriproxyfen applications were conducted. Beginning 6 wk prior to the 1st pyriproxyfen spray, 10 Biogents-Sentinel traps were used each week to survey the adult Ae. albopictus population at each experimental plot through the end of the study. The treatment and control plots contained specimen cups each containing 10 laboratory-reared Ae. aegypti larvae, placed at 8, 15, and 23 m from the spray line. Emergence inhibition (EI) of 82% or greater was observed among Ae. aegypti larvae exposed to the 3 pyriproxyfen sprays. The EI of these same Ae. aegypti larvae at the 3 distances from the spray ranged from 84% to 92% and were not significantly different. Laboratory analysis of water samples taken from the larval cups independently confirmed the presence of pyriproxyfen. Similar levels of EI were achieved in Ae. aegypti and Ae. albopictus larvae when the measured field concentrations of pyriproxyfen were recreated in laboratory assays. Trap captures of wild adult Ae. albopictus were not markedly reduced following the 1st pyriproxyfen spray, perhaps due to heavy rainfall at the time and the lower rate of pyriproxyfen applied. Within 2 wk following Spray 2, however, Ae. albopictus collections from the treatment plot averaged approximately 50%of those from the control plot, and the reduction trend continued following Spray 3.


Descriptors :   *BIOLOGICAL INSECT CONTROL , *CULICIDAE , *LARVAE , AEDES , BIOASSAY , EXPOSURE(PHYSIOLOGY) , GROUP B ARBOVIRUSES , INFECTIOUS DISEASE TRANSMISSION , INSECTICIDES , LABORATORY TESTS , YELLOW FEVER VIRUS


Subject Categories : Agricultural Chemistry
      Biology


Distribution Statement : APPROVED FOR PUBLIC RELEASE