Effect of xanthan gum and traditional mosquito larvicides on chironomid larvae

Harold P. Laskowski, Annabella C. Larsen, George F. O'Shea, Barry Robert Pittendrigh

Research output: Contribution to journalArticlepeer-review


Chironomid larvae are an important food source for many species of wildlife that depend upon wetland habitats. Using various pesticides to control mosquitoes may impact chironomid larvae, with important consequences to the quality of these wetland habitats for wildlife. We tested the effect of traditional mosquito larvicides: Bacillus thuringiensis var. israelensis (BT1), temephos, a carbohydrate gum thickener (xanthan gum), and a modified starch (National 5370) on chironomid larvae in a wetland located in eastern Delaware. Only temephos reduced numbers of live chironomid larvae observed (P<0.01). We discuss the potential role of a carbohydrate-based mosquito control method in wetlands where chironomid larvae are the nontarget invertebrates of concern.

Original languageEnglish (US)
Pages (from-to)741-745
Number of pages5
JournalWildlife Society Bulletin
Issue number3
StatePublished - Sep 1999


  • Abate®
  • Aquatic invertebrates
  • Bacillius thuringiensis
  • Chironomids
  • Mosquito control
  • Temephos
  • Wetlands
  • Xanthan gum

ASJC Scopus subject areas

  • Nature and Landscape Conservation


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