Figure 2 is a bar graph showing the percentage
of powdery mildew isolates per Ontario orchard that have the G143A mutation, or
mutant genotype associated with strobilurin resistance. The number of orchards
are divided into 3 resistance level categories: Susceptible, if the mutant genotype
is less than 10%; Shifted, if the mutant genotype is between 10-50%; Resistant,
if the mutant genotype is greater than 50%. There are 10 Ontario orchards that
are susceptible, 4 that are shifted, and 2 that are resistant.
to Powdery Mildew Resistance Testing