Phytotoxic effect of insecticides mixtures on chlorophyll content ‘a’ in chickpea leaves

Insecticide mixtures viz., Roket, colphos, Nimbicidine + Biolep, eucalyptus + lemon grass oil + neem oil and profenofos (organophosphate insecticide) generally used against Helicoverpa armigera significantly increased chlorophyll content ‘a’ in chickpea leaves while application of endosulfan + Biolep showed sharp decline in chlorophyll content ‘a’. Endosulfan at 0.07% concentration with 0.5% Biolep proved more toxic to chlorophyll content ‘a’ than endosulfan at 0.05%.