PROBLEM TO BE SOLVED: To provide a granular agent for rice in a seedling growing box, without having phytotoxicity, showing a long term effectiveness and further capable of spraying an agrochemically active component having high water solubility and leading a risk of generating phytotoxicity by the rapid absorption of the agrochemical active component into the rice, and another agrochemical active component without capable of imparting residual effectiveness by rapid flowing out in early period because of having a high elution property into water, without floating the preparation on water surface on its application.SOLUTION: This granular agent for the rice in the seedling-growing box contains 3-30 wt.% agrochemical insecticide active component of 1,3-dicarbamoylthio-2-(N,N-dimethylamino)-propane hydrochloride (cartap hydrochloride) and/or 5-dimethylamino-1,2,3-trithian oxalate (thiocyclam oxalate), 50-93 wt.% thermoplastic biodegradable plastic resin and 0.5-42 wt.% elution into water-accelerating material.COPYRIGHT: (C)2007,JPO&INPIT【課題】育苗箱水稲用粒剤において、農薬活性成分の水中溶解性が高く、その為に農薬活性成分が急激に水稲内に吸い込まれ薬害が発生する危険性がある農薬活性成分や水中溶出性が高いために早期に流れ出て残効が付与されない農薬活性成分を、薬害が無く、長期間の効力があり、更には施用時に水面で浮遊することなく散布ができる育苗箱水稲用粒剤を提供する。【解決手段】粒剤中に、1、3-ジカルバモイルチオ-2-(N、N-ジメチルアミノ)-プロパン塩酸塩(カルタップ塩酸塩)及び/又は5-ジメチルアミノ-1,2,3-トリチアンシュウ酸塩(チオシクラムシュウ酸塩)の農薬殺虫活性成分3~30重量%、熱可塑性生分解性プラスチック樹脂50~93重量%、および水中溶出促進材料0.5~42重量%を含有する育苗箱水稲用粒剤が、上記課題を解決できる。【選択図】なし
