Artificial Soil Test of Phorate on Eisenia fetida
Suneel Kumar and Singh SM*
Earthworm Toxicology Unit, Earthworm Ecology and Environmental Research Laboratory, Department of Animal Science, Mahatma Jyotiba Phule Rohilkhand University, Uttar Pradesh, India
- Corresponding Author:
- Singh SM
Earthworm Toxicology Unit, Earthworm Ecology
and Environmental Research Laboratory
Department of Animal Science, Mahatma Jyotiba Phule
Rohilkhand University, Bareilly-243 006, Uttar Pradesh, India
E-mail: [email protected] (or) [email protected]
Received date: June 21, 2016; Accepted date: July 27, 2016; Published date: July 29, 2016
Citation: Kumar S, Singh SM (2016) Artificial Soil Test of Phorate on Eisenia fetida. J Environ Anal Toxicol 6:391. doi :10.4172/2161-0525.1000391
Copyright: © 2016 Kumar S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Phorate an organophosphate insecticide is commonly applied on crops to kill the stem borers but major part of it reaches on the soil which is a pivotal component of the environment. The soil possesses diverse and numerous life forms amongst which earthworms are considered as major representative organisms. The level of toxicity of various pesticides is found different and is considered as one of the valuable parameters in killing the agricultural pests. In the present paper the acute toxicity (LC50) of phorate was evaluated for the epigeic earthworm, Eisenia fetida and assessed by artificial soil test method as per proposed in OECD testing guideline No. 207 (1984). Results showed that acute toxicity (LC50) of phorate was found to be 22.5 mg/kgat the end of 14 day artificial soil test, and is considered as ‘extremely toxic’ to the experimental worm. The purpose of the study was to ascertain its minimal dose to be applied to kill the pests but not the earthworms. These findings showed that a dose of less than its acute toxicity level may be applied on the crops that will not affect the earthworms.