The P. sojae in Heilongjiang had pathogenicity to some main soybean cultivars in Heilongjiang, but no pathogenicity to international standard differential cultivars.

• 黑龙江省大豆疫霉菌株对黑龙江省大豆主栽品种表现出不同的致病性，但对国际标准鉴别寄主不致病。