The present invention relates to novel tetrahydronaphthyl(thio) carboxamides, to processes for preparing these compounds, to compositions comprising these compounds, and to the use thereof as biologically active compounds, especially for control of harmful microorganisms in crop protection and in the protection of materials.本發明係有關一種新穎四氫萘基(硫基)甲醯胺類、製備此等化合物之製程、包含此等化合物之組成物、及其作為生物活性化合物之用途,尤其用於保護作物與保護材料中控制有害微生物。