您要查找的是不是：
- Alternaria brown leaf spot 叶褐斑病
- Cassava Brown Leaf Spot (BLS) is a major leaf disease of cassava caused by Cercosporidium henningsii, the disease mainly destroyed cassava leaves. 木薯褐斑病(Brown Leaf Spot)是由木薯尾孢菌(Cercosporidium henningsii, Allesch)引起的一类真菌性病害。
- ENGLISHInitial symptoms are narrow, dark brown leaf spots that enlarge over time into oblong to irregularly shaped lesions with dark tan centers and dark brown to purple margins (Plate 9). 症状/发病信号: 最初的症状是在叶片上出现窄的，棕黑色的斑点，随着时间的推移扩大成椭圆形至无规则切口，中心呈棕褐色 而边缘为暗褐色或紫色（见图9）。
- rice narrow brown leaf spot 稻叶窄斑病
- Fig. 2. Conidiophores and conidia of Alternaria alternata produced on leaf spot of Basella rubra(A,B). 二、落葵叶斑病斑上的病原菌孢子梗及孢子(A,B)。
- brown leaf spot of rice 稻褐色叶枯病
- pepper brown leaf spot 辣椒褐斑病
- Tomato brown leaf spot 番茄褐斑病
- Brown leaf spot 褐斑病
- Fig. 1. Symptom of leaf spot on Basella rubra. 一、落葵叶斑病之病徵。
- dichondra brown leaf spot 马蹄金褐色叶斑病
- brown leaf spot disease 褐斑病
- Pear brown leaf spot virus 梨褐色叶斑病毒
- Brown leaves came whirling down. 黄叶飘零。
- Based on the isolation and culture of pathogen and upon the procedure of Koch's postulation, the leaf spot on Dichondra repens was determined to be caused by Colletotrichum sp. and Alternaria sp. 摘要通过对马蹄金叶斑病病原菌的分离、培养等研究，按照柯赫氏法则确定此病由胶孢炭疽菌和交链孢引起的。
- A NEW SPECIES OF CERCOSPORA CAUSING LEAF SPOT OF MELIOSMA SP. 引起泡花树属叶斑的尾孢菌属一新种。
- The pathogen of gray leaf spot had different pathogenicity. 玉米灰斑病病原菌种群中致病性存在差异。
- Any of various fungi in the genus Alternaria, many of which cause plant diseases, chiefly blights and leaf spots. 交链包属一种交链包属真菌，其中很多可以引起植物病，主要是萎缩病和叶斑病
- The bulbs were over. All that remained of them were clumps of brown leaves. 这些鳞茎死了，剩下的只是一丛丛的黃叶子。
- The cercospora leaf spot is one of the main diseases infecting sugarbeet. 褐斑病是甜菜的主要病害之一,危害性很大。
