Abstract:
A 1,4-dithiane-2,5-diol compound is provided to show excellent sterilizing activities on various plant pathogenic bacteria and induce defense reaction of plant cells, thereby being used as an environment-friendly sterilizing agent of various plant diseases. A composition for controlling plant diseases such as anthracnose, leaf blast, epidemic and rust comprises a 1,4-dithiane-2,5-diol compound represented by a formula(1) as an effective ingredient. An antimicrobial agent regarding a microorganism is selected from a group consisting of Colletotrichum sp., Magnaporthe sp., Phytophthora sp., Alternaria sp., Rhizoctonia sp., Acidovorax sp., Agrobacterium sp., and Pectobacterium sp. comprise the 1,4-dithiane-2,5-diol compound. A plant is treated with the composition for controlling plant diseases in order to control the plant diseases.