METHOD FOR CONTROLLING BLIGHT OF GRAMINEOUS PLANT USING SYMBIOTIC BACTERIUM, CONTROLLING AGENT AND SEED TO WHICH THE CONTROLLING AGENT IS BOUND

摘要

PPROBLEM TO BE SOLVED: To provide a biological control method using a symbiotic bacterium- introduced plant in which a symbiotic bacterium comprising a bacterium imparting insect pest injury resistance to gramineous plants without using a chemical synthetic agrochemical, namely, the bacterium which can be infected into the plant and can be symbiosed with the plant and has a function of imparting resistance to the gramineous plant is artificially introduced into the infected and symbiosed plant, and to obtain a controlling agent and a seed to which the controlling agent is bound. PSOLUTION: The symbiotic bacterium comprising a bacterium developing resistance to insect pest injuries is separated from a naturally present plant body and the symbiotic bacterium is artificially cultured and introduced into a target gramineous plant to impart the resistance against insect pest injury to the gramineous plant. A bacterium of the genus Herbaspirillum or the genus Azospirillum is exemplified as the symbiotic bacterium. An insect pest belonging to the order lepidopteron, the order orthopteran, the order Diptera, the order Coleoptera or the order Hemiptera is exemplified as the insect pest. PCOPYRIGHT: (C)2004,JPO