. Cassell's popular gardening. Gardening. 80 CASSELL'S POPULAR GAEDENING. dry. Muscats and those tender delicious kinds, White Frontignan, and Duchess of Buccleuch, are often badly rusted by sulphur, if applied when they are ripe or approaching that stage. Scalding (Fig. 31.)—This is a disease wliich affects certain kinds of grapes, always at one par- ticular stage of their growth. Lady Do\sTies and Muscats are most subject to it, and it always attacks them during the time they are finishing stoning. In fine, steady weather, the disease is very slight; but during hot oppressive days, notably w
. Cassell's popular gardening. Gardening. 80 CASSELL'S POPULAR GAEDENING. dry. Muscats and those tender delicious kinds, White Frontignan, and Duchess of Buccleuch, are often badly rusted by sulphur, if applied when they are ripe or approaching that stage. Scalding (Fig. 31.)—This is a disease wliich affects certain kinds of grapes, always at one par- ticular stage of their growth. Lady Do\sTies and Muscats are most subject to it, and it always attacks them during the time they are finishing stoning. In fine, steady weather, the disease is very slight; but during hot oppressive days, notably when the atmosphere is charged 's^4th electricity, the bunches. Fig. 30.—Mildew. suffer severely. The berries suddenly become de- pressed and x^tickered on one side; the kernels seem to ferment, and in a few hours they look as if they had been syringed or touched with boiling water. What is most remarkable, scalding is not confined to bunches that are exposed to the sun, as many of them are placed where the sun cannot touch them. During the stoning process, great attention should be given to ventilation throughout the day, and the moment a scalded berry is detected, the house should be as freely ventilated as a warm conservatoi'y. A low temperatiu-e must not, however, be caused by allowing the fires to go out, as the link which com- pletes the twenty-four hours, consists of keeping the pipes and the house warm through the night to pre- vent the berries from getting cold before morning, otherwise they will condense moistm-e, as they will not warm so quickly as the air of the house when the sun again falls upon the roof. If root-action is satisfactory, the critical period will not exceed three weeks. Bleeding.—When bleeding sets in, it is almost impossible to stop it imtil the vines get into leaf, when Nature lends her healing art; but by that time vigorous vines are very often seriously enervated. Searing with hot irons, sealing-wax, painter's knot- ting, and other styptics
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Keywords: ., bookcentury1800, bookdecade18, booksubjectgardening, bookyear1884
