A Comparative Study on the Toxicity of a Synthetic Pesticide, Dichlorvos and a Neem based Pesticide, Neem-On to Labeo rohita (Hamilton)

Autor:	Alok Verma, Geeta Saxena, Imtiyaz Ahmad Bhat, Bilal Ahmad Bhat, Santosh Vishwakarma
Rok vydání:	2012
Předmět:	Biocide Pesticide residue Pesticide Biology biology.organism_classification Toxicology Labeo chemistry.chemical_compound chemistry Dichlorvos Bioassay Water quality Water pollution General Environmental Science
Zdroj:	Current World Environment. 7:157-161
ISSN:	2320-8031 0973-4929
Popis:	Fish and other organisms are affected by pesticides which pollute the natural water through agricultural runoff. Fishes are common bioindicators of water pollution. In the present study bioassay of synthetic pesticide, Dichlorvos and a plant origin natural pesticide, Neem-On was separately done on Labeo rohita. Data obtained from the toxicity tests were evaluated using the Probit Analysis Statistical Method. The 96h LC 50 of Dichlorvos and Neem-On was found to be 16.71ppm, 42.66ppm respectively. The fish exhibited erratic swimming, copious mucus secretion, loss of equilibrium and hitting to the walls of test tank prior to mortality. In this study, Neem-On was less toxic to fish as compared to Dichlorvos. Plant based pesticides are biodegradable and are target specific than the highly persistent broad spectrum synthetic chemicals. Therefore, use of plant based pesticides is less disastrous and more ecofriendly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f85ca2a6386a563fea82cd4816897e9b https://doi.org/10.12944/cwe.7.1.24 Zobrazit plný text záznamu