| 摘要 |
The present invention provides an insect repellent derivative from natural plants and having novel and excellent effects. An extract liquid obtained by applying an ordinary extracting process to leaves, flowers, branches, stems, or roots of the spiraea group plants by use of water, or an organic solvent such as a low alcohol, or a water-containing low alcohol; an extract liquid obtained by boiling or steaming leaves, flowers, branches, stems, or roots of the spiraea group plants; or a supernatant or a squeezed liquid obtained by squeezing leaves, flowers, branches, stems, or roots of the spiraea group plants or grinding together with water and other solvent leaves, flowers, branches, stems, or roots of the spiraea group plants are used as an insect repellent as it is or in the form of being condensed or powdered.
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