(1) Bartlett pears are susceptible to fire blight.

(2) Fire blight is treated with a streptomycin antibiotic during bloom.

(3) This variety is susceptible to fire blight.

(4) Fire blight (Erwinia amylovora), a bacteria disease originated in North America, was released into new locations by means of fruits trade.

(5) Fire blight can survive in the majority part in China and might blast under suitable host plants and environmental conditions.

(6) The reason, ironically, is that fire blight has become resistant to the antibiotic apple growers had been using, streptomycin .

(7) Mainly 3 parts were studied on this thesis; they were Pest risk analysis (PRA) and detection techniques of Erwinia amylovora and susceptibility of some rosaceae plants in China to fire blight.