Faculty of Biology, University of Latvia
EEB
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Environ Exp Biol (2025) 23: 63–68
About the Journal Retractions Open Access Author Guidlines Current Issue Archive
Environmental and
Experimental
Biology

Environ Exp Biol (2025) 23: 63–68

Orginal Paper

The combination of unicellular green algae from the Scenedesmaceae family (Chlorophyta) and inorganic fertiliser favors the proliferation of the mosquito Aedes albopictus (Diptera: Culicidae)

Frédéric Darriet*
Institute of Research for Development (IRD délégation Occitanie), Maladies Infectieuses et Vecteurs, Écologie, Génétique, Évolution et Contrôle (MIVEGEC), Université de Montpellier, IRD, CNRS, 911 Avenue Agropolis, BP 64501, 34394 Montpellier Cedex 5, France
* Corresponding author, E-mail: frederic.darriet@yahoo.com

Abstract

Inorganic fertilisers (IF) are widely used often leading to pollution of breeding sites of mosquitoes. In the same locations many species of unicellular algae, on which mosquito larvae feed, can be found as well. In this experiment, three conditions were studied: water, IF alone and an IF solution in which green algae belonging to the Scenedesmaceae family were cultivated (IF + A). When Aedes albopictus female mosquitoes could not choose where to lay their eggs because they had no possibility of contact with the different treatments beforehand – in the bioassays performed in blind double-tunnels – the numbers of positive or negative breeding sites and mean egg number in each were not statistically different. In contrast, when the females could freely choose where to lay their eggs – in the bioassays performed in plastic containers – the largest number of eggs were found in the IF + A treatment, followed by IF alone and, finally, water alone. The specific attractiveness of IF was clearly correlated with the greater carbon dioxide emissions of this treatment compared with the other two. This observation thus revealed that the carbon dioxide released by the algae accounts for the selection of breeding sites. Besides being more attractive to A. albopictus females, the IF + A combination ensured greater survival rates to the larvae and pupae.

Key words: Aedes albopictus, blind double-tunnel, carbon dioxide, inorganic fertiliser, Scenedesmaceae algae family.

 
Environ Exp Biol (2025) 23: 63–68
 DOI: http://doi.org/10.22364/eeb.23.06
EEB

Editor-in-Chief
Prof. Gederts Ievinsh
Published by
University of Latvia

 
For Authors
Indexing
Directory of Open Access Journals
Google Scholar
Thomson Reuters
CAB Abstracts
EBESCO/ASC
Last modifications: 2025.07.02-22:15

Print ISSN 1691-8088 – Online ISSN 2255-9582 Copyright © 2025 University of Latvia