. Fio. ' neeris. Perithecia. (Aftor Tuliuiiic.) into the cells. The mycelium forms white s])ots, but after a time causes the death of cells near it, so that brown withered spots appear. The leaves generally wither, the grapes, liowever, continue to grow at the jtlaces not attacked, till rupture of the coat ensues, then they shrivel u]) or fall a prey to mould-fungi. Sulphur is the preventive generally used (See p. 170). Uncinula aceris D. C. (liritain). This appears as Nv;hite spots on the leaves of .species of Ao); native and cultivated. When attacked by this mildew, young unf


. Fio. ' neeris. Perithecia. (Aftor Tuliuiiic.) into the cells. The mycelium forms white s])ots, but after a time causes the death of cells near it, so that brown withered spots appear. The leaves generally wither, the grapes, liowever, continue to grow at the jtlaces not attacked, till rupture of the coat ensues, then they shrivel u]) or fall a prey to mould-fungi. Sulphur is the preventive generally used (See p. 170). Uncinula aceris D. C. (liritain). This appears as Nv;hite spots on the leaves of .species of Ao); native and cultivated. When attacked by this mildew, young unfolding are stuuteil in growth, while older lf;i\; ill autuiiiii still retain their chlon)-


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897