Abstract

7.Avoidance behavior of Eisenia fetida to Chlorpyrifos and 2, 4-D Ethyl ester in natural soil from Kota (Rajasthan) in India
Anamika Khandelwal Khunteta and Anuradha Singh
Kota is situated in the south eastern part of Rajasthan state alongside Chambal river with good agriculture produce. Maize, Wheat, Mustard and Soyabean are the major crops of this region. This humid south eastern plain of Rajasthan contains very productive deep black/brown clayey soil. In our research, it has been found that the main species of Earthworm in agricultural area around Kota city is Eisenia fetida. The use of pesticides to treat seeds and other agricultural applications for high yield of food production is a common practice. The main objective of this paper is to observe the effect of pesticides used for one Rabi season crop. Wheat crop has been selected for this study. Chlorpyrifos and 2, 4-D Ethyl ester (2,4-DE) are two popularly used insecticide and herbicide respectively for wheat. Study of avoidance behavior of earthworm to pesticides is quick and easy to perform, and it is known to observe the sensitivity of earthworms towards a wide range of chemicals. Avoidance test has been performed by two compartment method in a container. This way optimal concentration of a specific pesticide may be determined so that farmers are encouraged to follow the same. This way, organic farming can be protected together with usual practice of using pesticides with recommended dosage.