An aqueous seed treatment insecticidal and/or nematicidal composition in theform of a suspension comprising (A) at least one insecticide and/or nematicidein an amount of at least 3 weight %, based on the total weight of thecomposition, and (B) at least two surface active compounds, wherein (i) atleast one is an anionic phosphate type compound, and (ii) at least one is anon-ionic alkoxylated phenol. Such compositions demonstrate improved dust-offperformance when applied to plant propagation material, such as seeds.
