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马铃薯晚疫病是由真菌 (Ｐｈｙｔｏｐｈｔｈｏｒａｉｎｆｅｓｔａｎｓ(ｍｏｎｔ)ｄｅＢａｒｙ)侵染引起的 ,目前已成为当今世界上危害马铃薯生产最严重的真菌性病害。对感病品种来说 ,发生轻的年份减产 2 0 %～ 30 % ,重的年份减产 5 0 %以上 ,甚至绝产。随着晚疫病有性世代Ａ2
The late blight of potato is caused by the infection of Phytophthora infestans (mont) de Bary and has now become the most serious fungal disease in the world that endangers potato production. For susceptible varieties, the occurrence of light years reduced 20% to 30%, heavy years reduced 50% or more, or even abortion. With late blight sexual generation A2