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ARS Home » Southeast Area » Gainesville, Florida » Center for Medical, Agricultural and Veterinary Entomology » Mosquito and Fly Research » Research » Publications at this Location » Publication #315840
Title: Aerial ULV application of Dibrom against Aedes aegypti in simulated urban and rural residences

Author
item Gibson, Seth
item Linthicum, Kenneth - Ken
item Aldridge, Robert
item Rush, Mattie
item KERCE, JERRY - Department Of Defense
item CROCE, JON - Department Of Defense
item LE, VIET - Department Of Defense
item BREIDENBAUGH, MARK - Youngstown Air Research Station
item HAAGSMA, KARL - Youngstown Air Research Station
item JANOUSEK, THOMAS - Youngstown Air Research Station
item ADAMS, TRAVIS - Youngstown Air Research Station
item TANCER, DREW - Youngstown Air Research Station
item LENAHAN, GEORGE - Youngstown Air Research Station
item REMMERS, JENNIFER - Youngstown Air Research Station
item LATHAM, MARK - Manatee County Florida
item GARDNER, JOHN - Manatee County Florida
item SHIVER, ART - Manatee County Florida
item CILEK, JIM - Department Of Defense
item HOFFMAN, ERIC - Department Of Defense
item DOUD, CARL - Department Of Defense
item NUNN, PETER - Department Of Defense
item WRIGHT, JENNIFER - Department Of Defense
item ARIMOTO, HANAYO - Department Of Defense
item HARWOOD, JAMES - Department Of Defense
item YANS, MATTHEW - Department Of Defense
item TORRES-ALVARADO, PAULO - Department Of Defense
item JUSTICE, KEVIN - Department Of Defense
item SPATOLA, DOMINICK - Department Of Defense
item TURNWALL, BRENT - Department Of Defense
item DOOLING, CHRISTOPHER - Department Of Defense
item FAROOQ, MUHAMMAD - Department Of Defense
item CONNELLY, PETER - Amvac Chemical

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 4/1/2015
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Reaching endophilic Aedes aegypti mosquito vectors of dengue located in human residences with aerial ULV pesticide applications is a prominent complication in operational wide area public health mosquito control activities. We conducted separate trials with a military C-130 fixed wing aircraft fitted with a modular aerial spray system and with a Hughes MD 500D helicopter fitted with a high pressure spray system to apply Dibrom (naled) over simulated urban and rural residences on a military reservation in north central Florida against caged adult sentinel colony-reared Ae. aegypti mosquitoes. We placed sentinel mosquitoes in open and protected locations both inside and outside of residences and measured mortality following multi-swath aerial applications conducted with typical real-world operational parameters. However, meteorological conditions were cool to warm with moderate humidity, and not representative of the hot, high humidity typical of dengue endemic regions. Selected residences were partially closed up sealed to provide an additional challenge to the ULV spray. Dibrom from the C-130 application penetrated well-ventilated residences and caused limited mortality in sentinel mosquitoes inside several protected locations; mortality in protected and unprotected outdoor locations was substantially higher, and approached 100% in unprotected outdoor locations. Dibrom from the MD 500D application also penetrated well-ventilated residences and caused high mortality in many unprotected indoor and outdoor locations, but only caused limited mortality in one indoor and two outdoor protected locations. Potential effects on spray dispersion of different droplet size spectra from the two spray systems and of different air currents generated by the aircraft are discussed.