Plant disease controlling agent and controlling method
A plant disease controlling agent containing a lactic acid bacterium which is capable of controlling plant disease and a plant disease controlling method which comprises treating a plant and/or soil with the above-mentioned lactic acid bacterium. By using the lactic acid bacterium seemingly advantageous to human health, an agricultural crop can be safely and stably produced. As the lactic acid bacterium as mentioned above, use may be favorably made of a microorganism belonging to the genus Pediococcus such as Pediococcus pentosaceus or a microorganism belonging to the genus Lactobacillus such as Lactobacillus plantarum.
1. A plant disease controlling agent comprising a plant disease controlling amount of a biologically pure culture of a lactic acid bacterium that is capable of controlling plant disease caused by at least one pathogenic microorganism selected from the group consisting of Pythium ultimum, Phytophthora capsici and Erwinia carotovora , wherein the lactic acid bacterium is at least one microorganism selected from the group consisting of Pediococcus pentosaceus FERM BP-10365 and Lactobacillus plantarum NITE BP-108.
2. A method of controlling a plant disease caused by Pythium ultimum, Phytophthora capsici and/or Erwinia carotovora , comprising treating at least one of plant or soil with a lactic acid bacterium that is capable of controlling plant disease caused by at least one pathogenic microorganism selected from Pythium ultimum, Phytophthora capsici and Erwinia carotovora , wherein the lactic acid bacterium is at least one microorganism selected from the group consisting of Pediococcus pentosaceus FERM BP-10365 and Lactobacillus plantarum NITE BP- 108.
3. The plant disease controlling agent of claim 1 , further comprising a pharmaceutically acceptable carrier.
4. The plant disease controlling agent of claim 3 , wherein the pharmaceutically acceptable carrier is selected from diatomaceous earth, clay, talc, perlite, chaff, and bone powder.