Disclosed is an insecticidal composition comprising by weight based on total weight of composition(a) from about 9 to about 91% of one or more anthranilic diamide insecticides and(b) from about 9 to about 91% of a branched copolymer component having water solubility or dispersibility at least about 5% by weight at 20° C.,wherein:the branched copolymer component comprises one or more branch segments attached to linear backbone segmentthe branch segments comprise at least two repeating monomer units and have number average molecular weight (Mn) at least about 1,000the branched copolymer component comprises hydrophilic groups andratio of component (b) to component (a) is about 1:10 to about 10:1 by weight.Also disclosed is a geotropic propagule coated with insecticidal composition. Further disclosed is a liquid composition comprising the insecticidal composition, and method for protecting a geotropic propagule and plant derived therefrom a phytophagous insect pest.