| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for separating a microorganism (streptomyces sp.) antagonistic to fruit tree streptomyces, to provide a method for proliferating the microorganism in a large amount, to provide a method for making a biological control agent, and to provide a method for mixing with a chemical agent and spraying the mixture. SOLUTION: This streptomyces separated from a livestock excreta compost and then cultured can be proliferated in a large amount by subjecting the streptomyces to a shaking culture in a chitin-added livestock excreta compost extract solution. The microorganism-controlling agent utilizing the antibiotic, spore germination-inhibiting, and lytic actions of the separated microbe (streptomyces) can be made. The microorganism-controlling agent can mixed with a spreader and then sprayed on the foliages of fruit trees to control the fruit tree anthracnoses. The Streptomyces-cultured solution can be mixed with an agrochemical (benomyl, iminocutadine albesilate) and then sprayed. COPYRIGHT: (C)2004,JPO
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