Laboratory evaluation of difenacoum rodenticides against the rice field rat Rattus argentiventer

Lam Y . M ., . Laboratory evaluation of difenacoum rodenticides against the rice field rat Rattus argentiventer. pp. 194-199. ISSN 0126-5709

Difenacoum was found to be a good rodenticide against R. argentiventer. The single-dose oral LD50 for males and females were 0.82 mg/kg and 0.68 mg/kg respectively. The median lethal feeding period (LFP50) of 0.001 difenacoum against males and females were 1.17 days and 1.28 days respectively. The pooled LFP50 of 0.001 difenacoum against both sexes was 1.23 days and the pooled LFP99 was estimated to be 3.59 days. Difenacoum was found to have a single-feed action and at 0.005-0.03 levels caused 70-100 mortalities in both sexes in one-day no-choice tests. The mean days to death for males and females were 7.9 days and 7.6 days respectively. Palatability tests indicated that R. argentiventer was able to detect difenacoum at 0.001 percent. Difenacoum at 0.005-0.03 could be used in the field for the control of R. argentiventer

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Abstract

Difenacoum was found to be a good rodenticide against R. argentiventer. The single-dose oral LD50 for males and females were 0.82 mg/kg and 0.68 mg/kg respectively. The median lethal feeding period (LFP50) of 0.001 difenacoum against males and females were 1.17 days and 1.28 days respectively. The pooled LFP50 of 0.001 difenacoum against both sexes was 1.23 days and the pooled LFP99 was estimated to be 3.59 days. Difenacoum was found to have a single-feed action and at 0.005-0.03 levels caused 70-100 mortalities in both sexes in one-day no-choice tests. The mean days to death for males and females were 7.9 days and 7.6 days respectively. Palatability tests indicated that R. argentiventer was able to detect difenacoum at 0.001 percent. Difenacoum at 0.005-0.03 could be used in the field for the control of R. argentiventer

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Item Type:	Article
Additional Information:	6 tables; 10 ref. Summaries (En Malay). Received Mar 1985
AGROVOC Term:	ARROZ
AGROVOC Term:	RODENTICIDAS
AGROVOC Term:	RATA
AGROVOC Term:	MAMIFEROS NOCIVOS/ EVALUACION
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:53
URI:	http://webagris.upm.edu.my/id/eprint/18077

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