| 摘要 |
<p>A process for producing an insecticidal preparation involving the step of keeping for a definite period of time a mixture comprising insect-parasitic nematodes, clay and water at a first temperature at which the nematodes are inactivated and then keeping the mixture for a definite period of time at a second temperature lower than the first temperature at which the nematodes are inactivated in order to prevent the mixture from drying. Thus is provided an insect-parasitic nematode preparation excellent in keeping qualities and containing insect-parasitic nematodes and clay.</p> |
