* PL-480 Project under which the work was done.
Pesticide Residue Laboratory, Department of Entomology, College of Agricultural, University of Udaipur, Udaipur.
* Part of the Ph. D. Thesis of Mr. P R Yadav
Studies have been carried out to find out the dissipation of BHC in clay loam soil under cover of maize. It has been observed that higher the treatment dosage more rapid is the dissipation and it is more rapid under the tropical conditions prevailing in India as compared to those reported for colder climates.