6茄子白粉病6.1病害症状主要为害叶片。叶面初现不定形褪绿小黄斑,相应的叶背面则出现不定形白色小霉斑,边缘界限不明晰,仔细观察,可见霉斑近乎放射状扩展。随着病情的进一步发展,叶面不规则形白粉状霉斑增多,斑面上白色粉状物日益明显,粉斑相互连合成白粉状斑块,扩展后白粉病斑遍及整个叶面,严重 6 eggplant powdery mildew 6.1 disease symptoms mainly damage leaves. The initial appearance of the leaf surface faded chloroplast small yellow spots, the corresponding leaf back appears white amorphous molds, the edge of the boundary is not clear, careful observation shows mildew nearly radially extended. With the further development of the disease, the appearance of white irregular millet mildew increased, the white powder on the plaque is increasingly evident, the plaque linked together into a white powder plaque, expanded powdery mildew throughout the entire leaf surface, serious