Phytopathology Research

Table 2 Sensitivity of the preliminarily screened resistant isolates of Ustilaginoidea virens to propiconazole

From: Monitoring and analysis of rice pathogen Ustilaginoidea virens isolates with resistance to sterol demethylation inhibitors in China

Isolates	Origin	EC₅₀ (μg/mL)	EC₉₀ (μg/mL)	RF	Resistance level
2017–11	Sensitive	0.053	0.26	/
2017–48	Sensitive	0.034	0.19	/
2017–2	Resistant	0.13	10.70	2.6	LM
2017–6	Resistant	0.24	21.03	4.8	LM
2017–61	Resistant	0.081	22.03	1.6	LM
2017–170	Resistant	0.058	12.09	1.2	LM
2017–176	Resistant	0.12	12.80	2.4	LM
2017–179	Resistant	0.048	3.18	1.0	/

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