Table 3. Fire blight ratings for controlled inoculations of flowering pears.

Pyrus taxa

% lesion length

950104^y ( ) P. ussuriensis ‘Prairie Gem’ P. betulifolia ‘Dancer’ P. regelii 93-70-2^y(calleryana ‘Chanticleer’ x elaeagrifolia) P. calleryana ‘Chanticleer’ 93-61-1^y(amygdaliformis x calleryana ‘Chanticleer’) 91-42-1^y(amygdaliformis x regelii) 911014^y( ) 93-15-1^y(elaeagrifolia x ussuriensis) P. calleryana ‘Fauriei’ P. calleryana ‘Bradford’ P. calleryana ‘Whitehouse’ 91-53-1^y(callyerana ‘Chanticleer’ x betulifolia) P. calleryana ‘Aristocrat’ P. calleryana ‘Red Spire’ 93-17-3^y(elaeagrifolia x amygdaliformis) 93-2-2^y((calleryana x fauriei) x nivalis) P. fauriei ‘Korean Sun’ P. elaeagrifolia ‘Turkish Mist’ 911010^y( ) 93-32-4^y(salicifolia ‘Pendula’ x ussuriensis) P. pyrifolia P. nivalis 808 93-8-5^y(fauriei x salicifolia ‘Pendula’) P. salicifolia ‘Pendula’ LSD 0.05

1^z 3 16 22 22 31 32 38 42 44 46 50 62 63 65 69 81 87 89 91 92 94 95 97 98 100 15

^Z % of total shoot length infected

^y interspecific hybrid taxa