Disclosed is an insecticidal composition comprising by weight based on the total weight of the 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 nonionic ethylene oxide-propylene oxide block copolymer component having a water solubility of at least about 5% by weight at 20° C., a hydrophilic-lipophilic balance value of at least about 5 and an average molecular weight ranging from about 1500 to about 20000 daltons； wherein the ratio of component (b) to component (a) is about 1:10 to about 10:1 by weight. Also disclosed is a geotropic propagule coated with an insecticidally effective amount of the aforedescribed composition. Further disclosed is a liquid composition consisting of about 5 to 80 weight % of the aforedescribed composition and about 20 to 95 weight % of a volatile aqueous liquid carrier, and a method for protecting a geotropic propagule and plant derived therefrom from a phytophagous insect pest, the method comprising coating the propagule with an insecticidally effective amount of the aforedescribed liquid composition and then evaporating the volatile aqueous liquid carrier.
