Susceptibility of non-target invertebrates to Brazilian microbial pest control agents

Microbial pest control agents or entomopathogens have been considered an interesting alternative to use instead of chemical insecticides. Knowledge of ecotoxicity data is very important to predict the hazard of any product released in the environment and subsidize the regulation of these products by...

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Bibliographic Details
Published in:Ecotoxicology (London) 2011-08, Vol.20 (6), p.1354-1360
Main Authors: Oliveira-Filho, Eduardo Cyrino, Muniz, Daphne Heloisa Freitas, Freire, Ingrid Souza, Ramos, Felipe Rosa, Alves, Roberto Teixeira, Jonsson, Claudio Martin, Grisolia, Cesar Koppe, Monnerat, Rose Gomes
Format: Article
Language:English
Subjects:
Acute toxicity
Animals
Bacillus
Bacterial Toxins - toxicity
Biomphalaria glabrata
Brazil
Cattle manure
Control
Daphnia - drug effects
Daphnia similis
Dung
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Fungi
Insecta - drug effects
Insecticides
Invertebrata
Invertebrates - drug effects
Microorganisms
Mycotoxins - toxicity
Pest control
Pest Control, Biological
Pests
Snails - drug effects
Species Specificity
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Summary:Microbial pest control agents or entomopathogens have been considered an interesting alternative to use instead of chemical insecticides. Knowledge of ecotoxicity data is very important to predict the hazard of any product released in the environment and subsidize the regulation of these products by governmental agencies. In the present study four new Brazilian strains of Bacillus and one fungus were tested to evaluate their acute toxicity to the microcrustacean Daphnia similis , the snail Biomphalaria glabrata and the dung beetle Digitonthophagus gazella . The microcrustaceans and the snails were exposed to entomopathogens in synthetic softwater and the beetles were exposed directly in cattle dung. Obtained data reveal low susceptibility of the non-target species to tested microorganisms, with lethal concentrations being observed only at much higher concentrations than that effective against target insects. These results show that the tested strains are selective in their action mode and seem to be non-hazardous to non-target species.
ISSN:0963-9292
1573-3017
DOI:10.1007/s10646-011-0691-4