EVALUATION OF SOME IGRS ALONE AND IN COMBINATION WITH SEED TREATMENTS AGAINST CHILO PARTELLUS SWINHOE (PYRALIDAE: LEPIDOPTERA) AND ATHERIGONA SOCCATA RODANI (MUSCIDAE: DIPTERA) ON FIELD MAIZE

The present studies were conducted to evaluate efficacy of three igrs, viper® (buprofezin), match® (lufenuron) and priority® (pyriproxyfen) alone and in combination with two insecticides used for seed treatment [confidor® (imidacloprid) and contest® (thiamethoxam)] at their field recommended dose rate against chilo partellus swinhoe (pyralidae: lepidoptera) and atherigona soccata rodani (muscidae: diptera). confidor® as seed treatment alone kept the c. partellus and a. soccata infestation below their etl (10%) for 30 days; whereas, contest® for 15 days only. mortality of c. partellus larvae and a. soccata maggots increased upto 21 dat and 14 dat in confidor® and contest® treated plants, respectively. match® a nd priority® alone or in combination with seed treatments exhibited 80-100% reduction in c. partellus infestation and 65.3-100% larval mortality upto 15 dat. viper® alone did not performed, however, its performance in combination with confidor® increased for c. partellus. against a. soccata, all evaluated igrs, alone or in combination with seed treatment, exhibited 80-100% reduction in infestation and 75-100% maggots' mortality upto 15dat. the results reveal that match® and priority® in combination with confidor® seed treatment can be better alternate to granular insecticide application for the biorational management of c. partellus and a. soccata on maize.