novel means capable of controlling a summary plant disease have been disclosed. Plant pathogenic bacteria for antibacterial and plant disease control agent of the present invention contains at least one member selected from the group consisting of amino acids and their derivatives as well as their oligomers and polymers, substantial antimicrobial active ingredients against plant pathogenic bacterium not included in and contains a cyanoacrylate polymer particles having an average particle size of less than 1000nm, as an active ingredient. Agent of the present invention, there is no anxiety toxicity to humans, animals, fish, birds, environmental impact is small. Moreover, since the existing antibiotics are completely different from the novel antibacterial agents and can be used even when the drug-resistant bacteria have emerged.要約 植物病害を防除できる新規な手段が開示されている。本発明の植物病原細菌用抗菌剤及び植物病害防除剤は、アミノ酸及びその誘導体並びにそれらのオリゴマー及びポリマーからなる群より選択される少なくとも1種を含有し、植物病原細菌に対する抗菌活性成分を実質的に含まず、かつ、平均粒径が1000nm未満であるシアノアクリレートポリマー粒子を有効成分として含有する。本発明の剤は、人畜・魚類・鳥類への毒性の不安がなく、環境への負荷が少ない。また、既存の抗生物質とは全く異なる新規な抗菌剤であるため、薬剤耐性菌が出現した場合でも使用可能である。
