There are various way of pest control. Repellent, is one of the way, has the merit that which worries of insect-resistance and persistence is fewer than such as insecticide. Many repellent substances, including terpens, are reported. On the other hand, study of the mechanism of action and structure-activity relationship is inadequacy. Today, various repellent against not only insects but also birds and mammals are sold. Besides, there are a wide range of the shape and purpose of item. Consumors which wants safety and security is on the increase nowadays. With these situations as a background, in future, market of repellent will expand further.

The final confirmation of Japanese wolf was in 1905 at Nara prefecture. We explored the effects of the cocktail of pyrazine analogues (P-mix), originated from wolf urine, on Hokkaido deer in field bioassays at a deer park in Nishiokoppe, Hokkaido, Japan. P-mix odour effectively suppressed the approach of the deer to the feeding area. In addition, P-mix odour provoked fearful behaviours, such as ‘flight’ and ‘jump’ actions, of the deer around the feeding area in a sex-specific manner. These results suggest that P-mix odor induces innate fear in deer. Our study is the first experimental demonstration that the pyrazine analogues in wolf urine have robust and continual aversive effects on ungulates. P-mix might be suitable for a repellent reducing damage to forests and agricultural crops by deer.

Effects of five commercial mole rejectants on the Japanese mole Mogera wogura and the small Japanese mole Mogera imaizumii. were tested in the laboratory and in the field. In the laboratory. ‘Kihi-jet’, ‘Moguless’ and ‘Mogura-yorazu’ were effective at least for short period. ‘Nigedasu’ and ‘Tosenbo’ werea not effective. In the field, passing frequencies of moles through a tunnel did not vary between locations, and it averaged 1.24 times / day. ‘Kihi-jet and ‘Mogu-less’ were also effective in the field tests.

At facilities for the elderly, medical and welfare facilities as well as at home care, care takers are struggling to find countermeasures for the clean up of the excrement of the elderly persons at present. Measures against odor of human waste are mainly taken by using deodorant fragrance, it is not possible to eliminate the original odor source. In this study, attention has been for cased on a major problem at the facility of the above “urine” odor associated with the putrefaction of the urine itself, odor substance of urine, and remembering associated with fiber. For bedding and underwear due to leakage of urine is the source of odor, and grasped the relationship between the generation of odor and the type and weave of the fabrics as results.