Doses efficaces en glyphosate et en 2,4-D pour le contrôle chimique des laitue d'eau (Pistia stratiotes, Linn.) et toxicité du glyphosate vis-à-vis des tilapias (Sarotherodon melanotheron)
The toxic effects of two herbicides Round up (gliphosate) and 2,4-D (herbazol) were tested on Pistia stratiotes (Linn. Araceae) samples cultivated in glass aquariums. The gliphosate appears to be more toxic on Pistia Stratiotes than 2,4-D. It was then tested on tilapia Sarotherodon melanotheron juveniles. The lethal dose for tilapia (CL50 = 13.25 mg.l -1) is about 18, 37 and 74 times higher than the glyphosate toxic dose for plants at 1, 2 and 4 meters water depth respectively.
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Main Authors: | , , |
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Format: | article biblioteca |
Language: | French |
Published: |
1991-11
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Subjects: | Biology, Ecology, Environment, Côte d'Ivoire, Lagune Ebrié, Pistia stratiotes, water lettuce, Sarotherodon melanotheron, tilapia, herbicides, glyphosate, herbazol, chemical control, lethal dose, |
Online Access: | http://hdl.handle.net/1834/24446 |
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