花生叶斑病是花生生产上危害最重的普发性病害。花生叶斑病有１０余种，目前危害最烈的有褐斑、黑斑、焦斑和网斑４种。这些斑病多混合发生，有些地区则以一种或两种危害为甚。发病后，使叶、茎早枯，大批落叶，轻者减产１５％左右，重者达４０％以上。一、病症的识别１．... Peanut leaf spot is the most devastating pandemic disease in peanut production. Peanut leaf spot disease has more than 10 species, the most damaging at present there are brown spots, dark spots, focal spot and net spot 4 species. These spots are mixed, and in some areas one or two hazards are worse. After the onset, the leaves, stems early withered, a large number of deciduous, light yield reduction of about 15%, severe cases of more than 40%. First, the identification of the disease ...