Table 1 Frequency and distribution of resistance of Ustilaginoidea virens to propiconazole in 2017
Sampling place | Number of isolates tested | Number of resistant isolates | Frequency of resistance (%) | |
|---|---|---|---|---|
Jiangsu | Xuzhou | 30 | 2 (2017–2, 2017–6) | 6.7 |
Huai’an | 33 | 1 (2017–61) | 3.0 | |
Jintan | 29 | 3 (2017–170, 2017–176, 2017–179) | 10.3 | |
Nantong | 12 | 0 | 0 | |
Yangzhou | 30 | 0 | 0 | |
Nanjing | 22 | 0 | 0 | |
Ganyu | 16 | 0 | 0 | |
Yancheng | 7 | 0 | 0 | |