Residues of Monocrotophos and Quinalphos on Brinjal

Dissipation of monocrotophos and quinalphos on brinjal fruits was studied following appllcation @ 500 ann d1000 gi ha−1. Initial deposits of monocrotophos were 1.93 and 2.59 mg kg−1 on brinjal fruits, which dissipated to below detectable level and 0.24 mg kg−1 in 4 days, respectively. In the case of quinalphos, initial deposits of 0.76 and 1.05 mg kg-1 at lower and higher dosages, respectively, dissipated to extent of 81–86% on second day. A waiting perrod of 4 and 2 days for monocrotophos and quinalphos, respectively, has been suggested.