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Main Title Sublethal Neurotoxic Effects of the Fungicide Benomyl on Earthworms ('Eisenia fetida').
Author Callahan, C. A. ; Drewes, C. D. ; Zoran, M. J. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Iowa State Univ., Ames. Dept. of Zoology.
Year Published 1987
Report Number EPA/600/J-87/377;
Stock Number PB88-251798
Additional Subjects Fungicides ; Toxicity ; Invertebrates ; Ecology ; Tests ; Exposure ; Carbamates ; Concentration(Composition) ; Nervous system ; Growth ; Histology ; Mortality ; Necrosis ; Electrophysiology ; Reprints ; Eisenia fetida ; Earthworms ; Benomyl ; LC 50
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NTIS  PB88-251798 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 14p
Abstract Earthworms (Eisenia fetida) were treated by surface contact exposure for four days with the fungicide benomyl. Non-invasive electrophysiological recordings after treatment with sublethal concentrations of 0.2-25 mg benomyl/litre of water indicated concentration-dependent decreases in conduction velocity for the medial and lateral giant nerve fibers. Threshold concentration for these effects was approximately two orders of magnitude less than the LC50. The effects on velocity were not accompanied by alterations in refractory period or impairment of locomotory reflexes, but persisted for at least several weeks after treatment. It is concluded that benomyl had subtle and sublethal neurotoxic effects on earthworm giant nerve fibers.
Supplementary Notes Pub. in Pestic. Sci. 19, p197-208 1987. Prepared in cooperation with Iowa State Univ., Ames. Dept. of Zoology.
NTIS Title Notes Journal article.
Title Annotations Reprint: Sublethal Neurotoxic Effects of the Fungicide Benomyl on Earthworms ('Eisenia fetida').
PUB Date Free Form c1987
Category Codes 57P; 57Y; 57Z
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 831528831
Origin NTIS
Type CAT