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Titolo:
EFFECTS OF AN HERBICIDE AND INSECTICIDE MIXTURE IN AQUATIC MESOCOSMS
Autore:
FAIRCHILD JF; LAPOINT TW; SCHWARTZ TR;
Indirizzi:
NATL BIOL SURVEY,MIDWEST SCI CTR,4200 NEW HAVEN RD COLUMBIA MO 65201
Titolo Testata:
Archives of environmental contamination and toxicology
fascicolo: 4, volume: 27, anno: 1994,
pagine: 527 - 533
SICI:
0090-4341(1994)27:4<527:EOAHAI>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
PYRETHROID INSECTICIDES; SYNTHETIC PYRETHROIDS; ATRAZINE; TOXICITY; RESPONSES; CORN; INVERTEBRATES; MACROPHYTES; COMMUNITIES; TOXICOLOGY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
J.F. Fairchild et al., "EFFECTS OF AN HERBICIDE AND INSECTICIDE MIXTURE IN AQUATIC MESOCOSMS", Archives of environmental contamination and toxicology, 27(4), 1994, pp. 527-533

Abstract

The ecological risk of pesticides is estimated from data generated onsingle chemicals. However, agricultural chemicals frequently occur inthe environment as herbicide and insecticide mixtures. This study investigated the effects of an herbicide and insecticide mixture in 0.1-ha mesocosms to determine if the herbicide would alter the bioavailability of the insecticide to fish and zooplankton. Mesocosms were treatedwith either 0 or 50 mu g/L atrazine (six mesocosms each) to create two levels of herbicide classification. A series of six concentrations of the pyrethroid insecticide esfenvalerate (0-1.71 mu g/L) was appliedon two dates within each herbicide level (0 or 50 mu g/L). Atrazine altered species composition of macrophytes but did not alter plant biomass, total system metabolism, or the bioavailability of the insecticide to zooplankton or fish. Potential ecological synergisms (i.e., increased effects of the insecticide due to the herbicide) did not occur because of the functional redundancy of the macrophyte community and therapid aqueous dissipation rate of the pyrethroid insecticide.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 12:31:37