Chloramine and copper sulfate as control agents of planktonic larvae of chironomus luridus in water supply systems

M. Halpern*, A. Gasith, B. Teltsch, R. Porat, M. Broza

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    12 Scopus citations

    Abstract

    The latest approach to control of midge larvae in drinking-water supplies is suppression of the planktonic 1st-stage larvae, by using 2 disinfectants, chloramine and copper sulfate. The median lethal concentration for 24-h exposure of the 1st-stage larvae of Chironomus luridus to chloramine and copper sulfate individually was 0.51 and 0.38 mg/liter, respectively. The increase of copper sulfate to 0.5 mg of copper per liter to water containing chloramine (0.5 mg/liter) created a synergistic reaction that resulted in 96% (±8% SD) mortality of the planktonic larvae. This treatment may serve as an effective control of 1st-stage larvae in municipal drinking-water supplies.

    Original languageEnglish
    Pages (from-to)453-457
    Number of pages5
    JournalJournal of the American Mosquito Control Association
    Volume15
    Issue number4
    StatePublished - Dec 1999

    Keywords

    • Chironomidae
    • Chloramine
    • Copper sulfate
    • Midge control
    • Water supply

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