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Dual‐treatment autodissemination station with enhanced transfer of an insect growth regulator to mosquito oviposition sites
Author(s) -
Wang Yi,
Suman Devi S.,
Bertrand Jacques,
Dong Limin,
Gaugler Randy
Publication year - 2014
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.3702
Subject(s) - pyriproxyfen , insect growth regulator , aedes albopictus , biology , pupa , bioassay , aedes aegypti , larva , toxicology , aedes , aedes vexans , ecology
BACKGROUND The Asian tiger mosquito, Aedes albopictus (Skuse), transmits important arboviral diseases and displaces native species. This peridomestic mosquito deposits eggs in natural and artificial containers. Container larval habitats tend to be cryptic and, therefore, difficult to reach by conventional insecticide treatments. We have developed an autodissemination station that transfers the insect growth regulator, pyriproxyfen, from the station to oviposition sites. Mosquitoes visiting the station become contaminated with an oil sticker followed by pyriproxyfen powder before exiting.RESULTS In a room (31 m 3 ) bioassay a single station consistently achieved 100% Ae. albopictus pupal mortality against 10 oviposition containers. In a greenhouse (200 m 3 ) assay with two stations and 12 oviposition cups, 91.7% of the cups had been contaminated as shown, and 57.1% pupal mortality was recorded. Pyriproxyfen transfer was also detected by visualizing mosquito ‘tarsal prints’ using a fluorescent dye.CONCLUSIONS The oil and pyriproxyfen powder dual‐treatment station enhanced autodissemination efficacy by increasing toxicant attachment and retention on contaminated females. The autodissemination station offers a targeted, less environmentally damaging approach to manage cryptic container species. © 2013 Society of Chemical Industry