A Geospatial Evaluation of Aedes vigilax Larval Control Efforts Across a Coastal Wetland, Northern Territory, Australia

N KURUCZ, P WHELAN, J CARTER, Susan Jacups

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Adjacent to the northern suburbs of Darwin is a coastal wetland that contains important larval habitats for Aedes vigilax (Skuse), the northern salt marsh mosquito. This species is a vector for Ross River virus and Barmah Forest virus, as well as an appreciable human pest. In order to improve aerial larval control efforts, we sought to identify the most important vegetation categories and climatic/seasonal aspects associated with control operations in these wetlands. By using a generalized linear model to compare aerial control for each vegetation category, we found that Schoenoplectusl/mangrove areas require the greatest amount of control for tide-only events (30.1%), and also extensive control for tide and rain events coinciding (18.2%). Our results further indicate that tide-affected reticulate vegetation indicated by the marsh grasses Sporobolus virginicus and Xerochloa imberbis require extensive control for Ae. vigilax larvae after rain-only events (44.7%), and tide and rain events coinciding (38.0%). The analyses of vector control efforts by month indicated that September to January, with a peak in November and December, required the most control. A companion paper identifies the vegetation categories most associated with Aedes vigilax larvae population densities in the coastal wetland. To maximize the efficiency of aerial salt marsh mosquito control operations in northern Australia, aerial control efforts should concentrate on the vegetation categories with high larval densities between September and January.
    Original languageEnglish
    Pages (from-to)317-323
    Number of pages7
    JournalJournal of Vector Ecology
    Volume34
    Issue number2
    Publication statusPublished - 2009

    Fingerprint

    Aedes vigilax
    Northern Territory
    coastal wetland
    wetlands
    tides
    tide
    vegetation
    mosquito
    rain
    salt marshes
    saltmarsh
    Barmah Forest virus
    virus
    Sporobolus virginicus
    Ross River virus
    larva
    vector control
    mosquito control
    larvae
    mangrove

    Cite this

    KURUCZ, N ; WHELAN, P ; CARTER, J ; Jacups, Susan. / A Geospatial Evaluation of Aedes vigilax Larval Control Efforts Across a Coastal Wetland, Northern Territory, Australia. In: Journal of Vector Ecology. 2009 ; Vol. 34, No. 2. pp. 317-323.
    @article{57071b4b7522414293e76522cd3edec9,
    title = "A Geospatial Evaluation of Aedes vigilax Larval Control Efforts Across a Coastal Wetland, Northern Territory, Australia",
    abstract = "Adjacent to the northern suburbs of Darwin is a coastal wetland that contains important larval habitats for Aedes vigilax (Skuse), the northern salt marsh mosquito. This species is a vector for Ross River virus and Barmah Forest virus, as well as an appreciable human pest. In order to improve aerial larval control efforts, we sought to identify the most important vegetation categories and climatic/seasonal aspects associated with control operations in these wetlands. By using a generalized linear model to compare aerial control for each vegetation category, we found that Schoenoplectusl/mangrove areas require the greatest amount of control for tide-only events (30.1{\%}), and also extensive control for tide and rain events coinciding (18.2{\%}). Our results further indicate that tide-affected reticulate vegetation indicated by the marsh grasses Sporobolus virginicus and Xerochloa imberbis require extensive control for Ae. vigilax larvae after rain-only events (44.7{\%}), and tide and rain events coinciding (38.0{\%}). The analyses of vector control efforts by month indicated that September to January, with a peak in November and December, required the most control. A companion paper identifies the vegetation categories most associated with Aedes vigilax larvae population densities in the coastal wetland. To maximize the efficiency of aerial salt marsh mosquito control operations in northern Australia, aerial control efforts should concentrate on the vegetation categories with high larval densities between September and January.",
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    author = "N KURUCZ and P WHELAN and J CARTER and Susan Jacups",
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    A Geospatial Evaluation of Aedes vigilax Larval Control Efforts Across a Coastal Wetland, Northern Territory, Australia. / KURUCZ, N; WHELAN, P; CARTER, J; Jacups, Susan.

    In: Journal of Vector Ecology, Vol. 34, No. 2, 2009, p. 317-323.

    Research output: Contribution to journalArticleResearchpeer-review

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    AU - KURUCZ, N

    AU - WHELAN, P

    AU - CARTER, J

    AU - Jacups, Susan

    PY - 2009

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    N2 - Adjacent to the northern suburbs of Darwin is a coastal wetland that contains important larval habitats for Aedes vigilax (Skuse), the northern salt marsh mosquito. This species is a vector for Ross River virus and Barmah Forest virus, as well as an appreciable human pest. In order to improve aerial larval control efforts, we sought to identify the most important vegetation categories and climatic/seasonal aspects associated with control operations in these wetlands. By using a generalized linear model to compare aerial control for each vegetation category, we found that Schoenoplectusl/mangrove areas require the greatest amount of control for tide-only events (30.1%), and also extensive control for tide and rain events coinciding (18.2%). Our results further indicate that tide-affected reticulate vegetation indicated by the marsh grasses Sporobolus virginicus and Xerochloa imberbis require extensive control for Ae. vigilax larvae after rain-only events (44.7%), and tide and rain events coinciding (38.0%). The analyses of vector control efforts by month indicated that September to January, with a peak in November and December, required the most control. A companion paper identifies the vegetation categories most associated with Aedes vigilax larvae population densities in the coastal wetland. To maximize the efficiency of aerial salt marsh mosquito control operations in northern Australia, aerial control efforts should concentrate on the vegetation categories with high larval densities between September and January.

    AB - Adjacent to the northern suburbs of Darwin is a coastal wetland that contains important larval habitats for Aedes vigilax (Skuse), the northern salt marsh mosquito. This species is a vector for Ross River virus and Barmah Forest virus, as well as an appreciable human pest. In order to improve aerial larval control efforts, we sought to identify the most important vegetation categories and climatic/seasonal aspects associated with control operations in these wetlands. By using a generalized linear model to compare aerial control for each vegetation category, we found that Schoenoplectusl/mangrove areas require the greatest amount of control for tide-only events (30.1%), and also extensive control for tide and rain events coinciding (18.2%). Our results further indicate that tide-affected reticulate vegetation indicated by the marsh grasses Sporobolus virginicus and Xerochloa imberbis require extensive control for Ae. vigilax larvae after rain-only events (44.7%), and tide and rain events coinciding (38.0%). The analyses of vector control efforts by month indicated that September to January, with a peak in November and December, required the most control. A companion paper identifies the vegetation categories most associated with Aedes vigilax larvae population densities in the coastal wetland. To maximize the efficiency of aerial salt marsh mosquito control operations in northern Australia, aerial control efforts should concentrate on the vegetation categories with high larval densities between September and January.

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