PROBLEM TO BE SOLVED: To provide an agent for plant (1) having effects on various plant diseases, (2) having safety that it affects on plant diseases or the like but has no human body toxicity and (3) having novel mechanism of action hardly generating resistant bacteria, and an extermination or pet control method of plant diseases using the agent for plant.SOLUTION: There are provided an agent for plant containing a porous ceramic obtained by combustion synthesizing a starting material containing (1) titanium and (2) at least one kind selected from a group consisting of carbon, boron, nitrogen and silicon, and an extermination or pet control method of plant diseases having a process for applying the agent for plant.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】（１）多種の植物病に効果を有し、（２）植物病害などには効くが人体毒性が無い安全性を有し、（３）耐性菌が出にくい新規の作用機序を有する植物用薬剤、及び該植物用薬剤を利用した植物病害の駆除又は防除方法を提供する。【解決手段】（１）チタニウム、並びに（２）炭素、ホウ素、窒素、及びケイ素からなる群から選択される少なくとも１種、を含む出発原料を燃焼合成することにより得られる多孔質セラミックを含有する植物用薬剤、並びに該植物用薬剤を施用する工程を備えた、植物病害の駆除又は防除方法。【選択図】なし
