The objective of the present invention is to provide with a fine grain agent in which water-suspensibility is improved. Hydrophilicity and suspensibility of the fine grain agent were improved by the addition of additives such as polyoxyethylene(160)polyoxypropylene(30)glycol and the like to the fine grain agent.本發明係以改良細粒劑之水懸浮性為目的。藉由在細粒中添加聚氧乙烯(160)聚氧丙烯(30)二醇及其他添加劑,改良細粒劑的濕潤性及懸浮性。