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喀什地区近年发生一种甜瓜病害.甜瓜受害极重,西瓜受害较轻.镜检表明,它是黄瓜假霜霉病菌[pseudoperonospora cu-bensis(B.et C.)Clinton]侵染所致.我们于1984年对它做了一些调查和研究.现简报于下.据在本所试验田、喀什市多来提巴格乡、疏附县马克萨克乡和帕哈太克里乡调查.甜瓜霜霉病7月中旬始发,下旬盛发,此时一般发病率达90%以上,病情指数达76.3—80.6,以中晚熟和晚熟品种甜瓜受害最重.受害植株叶片干枯死亡,常常整个瓜田一片枯焦,状似火烤.此时甜瓜尚未成熟.一般损失达50%左右.
In recent years, a kind of muskmelon disease occurred in Kashgar region, the melon suffered a great deal and the watermelon was harmed. Microscopic examination showed that it was caused by the infection of pseudoperonospora cu-bensis (B.et C.) Clinton. Some investigations and studies were carried out on it in 1984. Presently reported are the following: According to the survey conducted in our experimental field, the Tashihba Township in Kashi, the Township of Marksake in Shufu County and the Taihe Kerli Township in Pafu, the melon frost Mildew onset in mid-July, the late Sheng, when the general incidence of more than 90%, the disease index reached 76.3-80.6, late maturing and late maturing varieties of melon suffered the most. Victims of plant leaves died, and often the whole melon field Burnt coke, shaped like a fire roasted.At this point melon is not yet mature, the general loss of about 50%.