The invention describes essentially a non-therapeutical process for deterringvermin, which is based on the usage of the largely known beta amino-alcohol derivativesof formula (I), as defined herein before. Furthermore, it describes the correspondingvermin-deterring compositions which contain these substances as the activeingredient, compounds of the formula (I) for the preparation of vermin-deterringcompositions, and the use of compounds of formula (I) in the defense against vermin.Thus, the invention describes how and in which form the compounds of the formula(I) or their acid addition salts are used to deter vermin from materials, placesor warm-blooded animals.