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℃, 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.所揭露者係一種殺蟲劑組合物，其包含以組合物總重的重量計算之：(a)從約9至約91%的一種或更多鄰胺苯甲酸二醯胺殺蟲劑；以及(b)從約9至約91%的非離子環氧乙烷-環氧丙烷嵌段共聚物成分，其具有在20℃下至少約重量百分比5之水溶性、至少約5之親水-親脂平衡值與介於約1500至約20000道耳頓之間之平均分子量；其中成分(b)與成分(a)之重量比例為約1:10至約10:1。亦揭露者係一種塗覆有效殺蟲量之前述組合物之向地性繁殖體。進一步揭露者係一種液體組合物，其由約5至80重量百分比之前述組合物與約20至95重量百分比之揮發水性液態載體組成，以及一種用以保護向地性繁殖體與由其衍生之植物免受植食性昆蟲害蟲侵害之方法，該方法包含將繁殖體以有效殺蟲量之前述液體組合物塗覆，以及接著將該揮發水性液態載體揮發。
