Title of article :
Acute Toxicity of Locust Insecticides to Two Indigenous Invertebrates from Sahelian Temporary Ponds
Author/Authors :
Joost Lahr، نويسنده , , Aliou Badji، نويسنده , , Simone Marquenie، نويسنده , , Egbertha Schuiling، نويسنده , , Khalifa B. Ndour، نويسنده , , Alpha O. Diallo، نويسنده , , James W. Everts، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
10
From page :
66
To page :
75
Abstract :
During desert locust plagues large amounts of insecticides are used for control operations. Drift from these treatments and accidental overspraying may contaminate small surface waters such as temporary ponds. The present study describes methods for static acute toxicity tests with two abundant organisms that occur in temporary ponds in the African Sahel region: the fairy shrimp Streptocephalus sudanicus Daday (Branchiopoda, Anostraca, Streptocephalidae) and the backswimmer Anisops sardeus Herrich-Schåffer (Hemiptera, Notonectidae). The organisms were captured in the field and 48-h static toxicity tests were conducted in the laboratory. The assays were used to screen the toxicity of 11 formulated synthetic insecticides used in desert locust control and of spores of the mycopesticide Metarhizium anisopliae var. acridum. Most of the synthetic insecticides tested were highly toxic to both organisms (LC50 or EC50<1 mg/L). Exceptions were the toxicity of diflubenzuron to A. sardeus (moderately toxic: 1
Keywords :
Arid zones , desertlocust control. , temporary ponds , Insecticides , Aquatic invertebrates , Indigenous species , Toxicity testing
Journal title :
Ecotoxicology and Environmental Safety
Serial Year :
2001
Journal title :
Ecotoxicology and Environmental Safety
Record number :
710353
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