All the PI isolates were sensitive, having EC50
values of 0.005–0.050mg mL1
. Three PD isolates were sensitive (0.027–0.038mg mL1
), while one
resistant isolate was categorized as low resistant (R-factor of 19), one as moderately resistant (R-factor of
33.2), three as resistant (R-factor of 50–57.6) and one as highly resistant (R-factor of 70.7).