Division of Entomology, Faculty of Agriculture, Annamalai University, Tamil Nadu-608 002.
Nine insecticidal formulations were bioassayed for their functional compatibility when mixed with five different fungicides and urea. Results showed a general compatibility for phos-phamidon, dimethoate, folithion and fenthion. Enhancement of action was evidenced in quinal-phos and malathion whereas there was an indication of functional incompatibility in fenitrothion, endosulfon and phosalone. Addition of urea did not alter the insecticidal value of any insecticide tested.