abstract |
(57) [Problem] To provide a pest repellent excellent in repellent effect and persistence against various pests such as blood-sucking pests, unsanitary pests, clothing pests, storage pests, and ants. SOLUTION: As an active ingredient of the pest repellent, 2,4- Decadienal or a saturated aldehyde having 4 to 16 carbon atoms is used. |