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小麦霜霉病在喀什地区发生比较普遍,但以往未受到重视.近年来,由于调种频繁及连作等原因,本病害不断扩展蔓延,给本区冬、春麦和复播春麦带来了较大的威胁.一、为害症状据1979年在岳普湖县调查,发病面积约一万余亩,发病率一般为5—10%,重者达30%以上.本区的几个小麦当家品种(巴克甫克、新冬2号、6814、解放3号)及复播春麦(波坦姆)都程度不同地受到为害.本病在田间发病较为集中,多成片、成块或成
Wheat downy mildew occurred more commonly in Kashgar region but has not been paid much attention in the past.In recent years, due to frequent planting and continuous cropping, the disease continues to expand and spread, bringing a greater impact on the winter, spring wheat and spring sowing First, the harmful symptoms According to the investigation in Yuepu Lake County in 1979, the incidence of about an area of about 10,000 acres, the incidence is generally 5-10%, in severe cases up to 30% .A few wheat varieties ( Bakke Beike, Xin Dong 2, 6814, Jiefang 3) and the spring planted Chunmai (Potam) were all affected to varying degrees.The incidence of the disease in the field is more concentrated, more into pieces, into blocks or into