| 摘要 |
A novel strain of Streptomyces galbus that produces metabolites and exhibits pesticidal activity is disclosed. In addition, a supernatant of the novel strain with pesticidal activity is disclosed. An ethyl acetate-soluble, small molecular weight, alkali stable, metabolite produced by the novel strain Streptomyces galbus with pesticidal activity against lepidopteran insects is provided. Also included are methods for fermenting the novel strain of Streptomyces galbus and increasing the bioactivity of the pesticidal activity. Also included are methods for protecting or treating plants from caterpillars comprising the step of applying to a plant an effective amount of the novel Streptomyces galbus strain, the metabolites produced by the strain, or a combination thereof. |
