METHOD FOR CONTROLLING WATER CHESTNUT BY FUNGUS OF NEW GENUS HYPHOMYCETES

摘要

PURPOSE:To control water chestnut without any influence on rice plant, by inoculating a fungus of the new genus which is a specific fungus capable of exhibiting abnormal propagation only in the water chestnut which is a weed in a desired period or applying a mycoherbicide using the fungus of the new genus. CONSTITUTION:A fungus of the new genus Hyphomycetes separated from lesions of infected water chestnut is artificially cultured and the formed spores are inoculated to infect and control the water chestnut or water chestnut infected by inoculating the fungus of the new genus is reared and used as an inoculation source to infect and control the water chestnut. Alternatively, the fungus of the new genus is artificially cultured, stored and inoculated in a desired period or a mycoherbicide using the fungus of the new genus is applied to cause onset in the water chestnut and further continuously initiate infection and onset in stems and leaves of newly extracted stems and leaves thereafter. Thereby, luxuriant growth is inhibited to carryout control. Since the method is not chemically synthetic, effects continue for a long period without a fear of environmental pollution.