| 菌株 strain | 烟草立枯病菌 Rhizoctonia solani | 烟草青枯病菌 Ralstonia solanacearum | 烟草黑胫病菌 Phytophthora nicotianae | 烟草炭疽病菌 Colletotrichum nicotianae Averna |
| CK | − | − | − | − |
| Y2 | 78.70% | 8.40% | 54.58% | 11.06% |