Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 50. LEAF-BLIGHT FUNGUS. MAGNIFIED. it is also carried through the winter by the mycelium inthe leaves, and the so-called winter spores, or Characters.—The process of devel-opment of the summer spores, or conidia, is representedin h, Fig. 50, which shows a tuft of them after havingbroken through the upper epidermis of the leaf. At cmay be seen some of the individual conidia, three of THE STRAWBERRY LEAF-BLIGHT 107 which have sent
Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. 50. LEAF-BLIGHT FUNGUS. MAGNIFIED. it is also carried through the winter by the mycelium inthe leaves, and the so-called winter spores, or Characters.—The process of devel-opment of the summer spores, or conidia, is representedin h, Fig. 50, which shows a tuft of them after havingbroken through the upper epidermis of the leaf. At cmay be seen some of the individual conidia, three of THE STRAWBERRY LEAF-BLIGHT 107 which have sent out germinating tubes. The winterspores within their cases, as they are borne on the leafin partially closed sacs—called perithecia—are seen in e,and at/some of these cases containing spores are repre-sented more highly magnified. Treatment.—It has been repeatedly shown thatthis leaf-blight may be prevented by the Bordeaux mix-ture. Usually spraying after the crop is gathered, espe-cially when the plantation is mowed and burned over,keeps the disease sufficiently in check, but additionalspring sprayings—one when the new le
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
