| 摘要 |
The invention concerns new pyridine derivatives of the formula <IMAGE> I wherein X signifies a group <IMAGE> (a) or <IMAGE> (b) and R1, R2, R3, R4 and R5 have the significances given in the description, and their N-oxides, N-amino salts, copper complexes and acid addition salts, processes for the manufacture of these substances, fungicidal compositions which contain these substances as the active ingredient and the use of such substances and compositions for the control of fungi in agriculture and in horticulture. |
