Streptomycin Resistance of <i>Erwinia amylovora</i> Isolated from Apple (<i>Malus domesticus</i>) in Utah

Fig. 3. Counties in Utah in which orchards were sampled for fire blight in 2010, 2011, and 2012. Orchards in yellow counties were sampled 2011 and 2012. Orchards in green colored county were sampled in all three years.

Image from Plant Health Progress article:
Streptomycin Resistance of Erwinia amylovora Isolated from Apple (Malus domesticus) in Utah