PROBLEM TO BE SOLVED: To obtain a microbial agrochemical which imparts little load to the environment and can actively work even at a relatively low temperature in controlling sclerotinia crown rot and root rot spreading even at a relatively low temperature in a terrestrial-part-disease control field wherein the appearance frequency of bacteria resistant to chemical agents is high; and to provide a control means which can contribute to IPM (integrated control). SOLUTION: The agrochemical containing the biomass or cultured product of Pseudomonas fluorescens bacteria separated from natural soil is used for treating a terrestrial part of a plant; thereby, sclerotinia crown rot and root rot can be easily controlled even at a relatively low temperature. COPYRIGHT: (C)2006,JPO&NCIPI
