Table 2.

Virulence formulas (Wan and Chen 2014) for Pst races detected in the UC Davis field during the 2014–2015 and 2015–2016 growing seasons

PSTv race	Year collected	Virulence formula
PSTv-11	2016	Yr1, Yr6, Yr7, Yr8, Yr9, Yr17, Yr28, Yr43, Yr44, YrExp2, YrTye
PSTv-15	2016	Yr1, Yr6, Yr7, Yr9, Yr17, Yr27, Yr43, Yr44, YrSP, YrExp2, YrTye
PSTv-17	2016	Yr1, Yr6, Yr7, Yr8, Yr9, Yr17, Yr27, Yr43, Yr44, YrSP, YrExp2, YrTye
PSTv-30	2015	Yr6, Yr7, Yr8, Yr9, Yr44, YrTr1, YrExp2
PSTv-37	2015 and 2016	Yr6, Yr7, Yr8, Yr9, Yr17, Yr27, Yr43, Yr44, YrTr1, YrExp2
PSTv-52	2015	Yr6, Yr7, Yr8, Yr9, Yr17, Yr27, Yr43, Yr44, YrExp2
PSTv-53	2015 and 2016	Yr1, Yr6, Yr9, YrSP, YrTye
PSTv-142	2015	Yr6, Yr7, Yr9, Yr44, YrTye