An aqueous seed treatment insecticidal and/or nematicidal composition in the form of a suspension comprising (A) at least one insecticide and/or nematicide in an amount of atleast 3 weight %, based on the total weight of the composition, and (B) at least two surface active compounds, wherein (i) at least one is an anionic phosphate type compound, and (ii) at least one is a non－ionic alkoxylated phenol. Such compositions demonstrate improved dust－off performance when applied to plant propagation material, such as seeds.本發明係關於一種呈懸浮液形式之水性種子處理殺蟲及/或殺線蟲組合物，其包含：(A)以該組合物之總重量計含量至少為3重量%之至少一種殺蟲劑及/或殺線蟲劑；及(B)至少兩種表面活性化合物，其中(i)至少一種是陰離子性磷酸酯類型之化合物及(ii)至少一種是非離子性烷氧基化酚。當該等組合物應用在植物繁殖物質（如種子）時，證明可提供改善的除塵效果。
