Toxicity of herbicides to Malaysian rice field fish

Ooi G.G., . and Lo N.P., . (1990) Toxicity of herbicides to Malaysian rice field fish. [Proceedings Paper]

Laboratory and field studies were conducted to determine the acute toxicity of eleven herbicides to common rice field fish in Malaysia. Laboratory studies indicated that herbicides bensulfuron 2 4-d metsulfuron and quiclorac have low toxicity LC50 more than 10ppm sepat siam Trichogaster pectoralis and/or keli Calarias batrachus while butachlor molinate oxadiazon pretilachlor propanil and thiobencard are moderately LC500.5-10ppm but fenoxaprop is highly toxic LC50less than 0.5ppm. However field studies showed bensulfuron 2 4-D fenoxaprop oxadiazon and propanil at double the effective rates for weed control were safe to the fish

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Abstract

Laboratory and field studies were conducted to determine the acute toxicity of eleven herbicides to common rice field fish in Malaysia. Laboratory studies indicated that herbicides bensulfuron 2 4-d metsulfuron and quiclorac have low toxicity LC50 more than 10ppm sepat siam Trichogaster pectoralis and/or keli Calarias batrachus while butachlor molinate oxadiazon pretilachlor propanil and thiobencard are moderately LC500.5-10ppm but fenoxaprop is highly toxic LC50less than 0.5ppm. However field studies showed bensulfuron 2 4-D fenoxaprop oxadiazon and propanil at double the effective rates for weed control were safe to the fish

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Item Type:	Proceedings Paper
Additional Information:	Summary En
AGROVOC Term:	PECES DE AGUA DULCE
AGROVOC Term:	HERBICIDAS
AGROVOC Term:	TOXICIDAD
AGROVOC Term:	MALASIA/ ARROZ
AGROVOC Term:	CAMPO
AGROVOC Term:	PRODUCTOS QUIMICOS AGRICOLAS
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/15119

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