. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 21. QUINCE LEAF PLATE V. PEAKS INJURED BY LEAF-BLIGHT FUNGUS. THE PEAR LEA F-BLIGHT 43 injured tliey fall ofp, and whole orchards arc some timesdefoliated by the disease, the trees appearing as bare inmidsLimmer as they normally do in winter (Plate I\^,iinsprayed). Of course, the effect upon the tree is veryinjurious; it is unable to store up the materials ofgrowth properly, and it becomes weak and this fungus do
. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 21. QUINCE LEAF PLATE V. PEAKS INJURED BY LEAF-BLIGHT FUNGUS. THE PEAR LEA F-BLIGHT 43 injured tliey fall ofp, and whole orchards arc some timesdefoliated by the disease, the trees appearing as bare inmidsLimmer as they normally do in winter (Plate I\^,iinsprayed). Of course, the effect upon the tree is veryinjurious; it is unable to store up the materials ofgrowth properly, and it becomes weak and this fungus does not confine its attention tothe foliage ; the stems and fruit are also attacked. Theformer become blackish and dead, and the latter is atfirst covered with reddish pimples, which finally becomeblackened and roughened, and generally cause the pearto crack open in such a manner as to ruin the such pears, photographed by Dr. II. H. Lamson,are represented in Plate V. This disease is especially destructive to young peartrees in the nursery, and the defoliation caused by itquite generally prevents successful budding, unless pre-ventive treatment is given. A good ge
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
