天山中东部柳树病害检索表1,叶部生病____21′枝干部生病____62.叶背面有鲜黄色夏孢子堆,以后叶正面出现暗色冬孢子堆________锈病Melampsora rlbesll-vlmlnalls2′叶两面有白色粉状菌丝,以后出现暗褐色小点,是在性阶段的闭囊壳________白粉病Uncinula adunca2″叶面有黑色灰黑色或灰色斑____33.叶斑很小,近园形,互相愈合成不规则状,上有稍突起浅褐色小点________褐斑病Marssonina kriegeriana3′叶斑较大,多角形,或不规则形____44.叶斑中央灰色,并有黑色小点,边缘色深____斑枯病Septoria salicicola Tianshan in the eastern willow disease search table 1, leaf disease ____21 ’branch disease ____62. Back of the leaves with fresh yellow summer spores, after the leaves appear dark teliospores ________ rust Melampsora rlbesll-vlmlnalls2’ leaves on both sides have White powdery mycelium, dark brown dots appearing later, closed shell in sexual phase ________ Powdery green uncinula adunca2 "Leaves with black gray-black or gray spots ____33. Leaves small, nearly orbicular, Healed to irregularly shaped, with slightly raised light brown dots ________ Brown Spot Marssonina kriegeriana3 ’Larger, polygonal, or irregularly shaped leaves ____44. Leaf spot central gray with black dots, Sebororia salicicola