| 摘要 |
PURPOSE: A composition with excellent effect of preventing harmful organisms by alternatively using hydrazide compounds and pyriproxyfen is provided. CONSTITUTION: A composition for preventing harmful organisms contains hydrazide compound of chemical formula 1 and pyriproxyfen mixed in a weight ratio of 5000:1-1:5000. The hydrazide compounds are prepared by reacting compounds 2 and 3. A method for preventing the harmful organisms comprises a step of using effective amount of the hydrazide compounds and pyriproxyfen.
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