| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition comprising 4-phenoxyphenyl 2-(2-pyridyloxy) propyl ether as an active ingredient having excellent effects on house dust mites and usable in a method for controlling the house dust mites. SOLUTION: This house dust mite controlling agent is characterized as comprising the 4-phenoxyphenyl 2-(2-pyridyloxy)propyl ether as an active ingredient.
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