Entomophaga

, Volume 35, Issue 1, pp 79–83 | Cite as

Effects of the preadatorDugesia dorotocephala [Tricladida: Turbellaria] on selected nontarget aquatic organisms: Laboratory bioassay

  • M. J. Perich
  • L. R. Boobar
Article

Abstract

The effects ofDugesia dorotocephala (Woodworth), a proven predator of aquatic Diptera, on 17 species of nontarget aquatic organisms were determined under controlled laboratory conditions. Only 3 of the nontarget organisms,Aeolosoma sp.,Cyclops sp. andToxorhynchites amboinensis (Doleschall), were significantly affected byD. dorotocephala. No significant difference in prey preference was found when planaria were maintained together with the target organism,Aedes aegypti, and the 3 adversely affected nontarget organisms. Results of this initial evaluation indicate thatD. dorotocephala is potentially safe to integrate as a biological control with most nontarget aquatic organisms tested.

Key-Words

Dugesia dorotocephala planaria biocontrol nontarget organisms mosquito larvae 

Résumé

Les effets deDugesia dorotocephala, prédateur prouvé de Diptères aquatiques ont été étudiés dans les conditions contrôlées de laboratoire sur 17 espèces d'organismes aquatiques non nuisibles. Seuls, 3 parmi eux:Aeolosoma sp.,Cyclops sp. etToxorhynchites amboinensis ont été affectés parD. dorotocephala. Il n'y a pas de différence significative dans le choix de la proie quand les larves ont été maintenues avec l'organisme nuisible,Aedes aegypti et les 3 organismes non nuisibles sensibles. Les résultats de cette évaluation initiale, indiquent queD. dorotocephala est potentiellement sans danger à utiliser comme lutte biologique avec la plupart des organismes aquatiques non nuisibles testés.

Most Clés

Dugesia dorotocephala planaire lutte biologique organismes non nuisibles larve de moustique 

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Copyright information

© Lavoisier Abonnements 1990

Authors and Affiliations

  • M. J. Perich
    • 1
  • L. R. Boobar
    • 1
  1. 1.U.S. Army Biomedical Research and Development LaboratoryFrederick

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