Toxicity of chlorpyrifos, carbofuran, mancozeb and their formulations to the tropical earthworm Perionyx excavates

dc.contributor.author	Mangala, P.
dc.contributor.author	Pathiratne, A.
dc.contributor.author	Cornelis, A.M.
dc.contributor.author	Gestela, V.
dc.contributor.author	de Silva, C.S.
dc.date.accessioned	2014-12-15T08:59:39Z
dc.date.available	2014-12-15T08:59:39Z
dc.date.issued	2010
dc.identifier	Zoology	en_US
dc.identifier.citation	Applied Soil Ecology, Volume 44, Issue 1, January 2010, Pages 56–60	en_US
dc.identifier.uri	http://repository.kln.ac.lk/handle/123456789/4727
dc.description.abstract	Effects of chlorpyrifos, carbofuran, mancozeb and their formulated products on survival, growth and reproduction of the tropical earthworm Perionyx excavatus were investigated in standard artificial soil. The toxicity of the three chemicals decreased in the order carbofuran > chlorpyrifos > mancozeb. In general, formulations were more toxic than the active ingredients, but differences in LC50 and ECx values were significant only in two cases and not more than a factor of 2.0. This could mainly be due to masking of the effects of additives in the soil. Comparison with available survival data revealed that P. excavatus is more sensitive than the standard test species Eisenia andrei or E. fetida. The use of tropical species in the risk assessment of pesticides in tropical regions should therefore be encouraged.	en_US
dc.publisher	Applied Soil Ecology	en_US
dc.title	Toxicity of chlorpyrifos, carbofuran, mancozeb and their formulations to the tropical earthworm Perionyx excavates	en_US
dc.type	Article	en_US