Fungicidally active novel .beta.-naphthylalkylamines of the formula ##STR1## in which Ar represents optionally substituted .beta.-naphthyl and R.sup.1 and R.sup.2, which can be identical or different, represent alkyl or alkenyl or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are bonded, represent an optionally substituted saturated heterocyclic radical, which can contain further hetero-atoms, or plant-tolerated acid addition salts thereof.
                            具有杀真菌活性的新型β-
萘基烷胺化合物的
化学式为##STR1## 其中Ar代表可选取的取代β-
萘基,R1和R2可以相同或不同,代表烷基或烯基,或者R1和R2与它们结合的氮原子一起,代表可选取的饱和杂环基团,该基团可以含有进一步的杂原子,或者其对植物耐受的酸盐。