. The book of the garden. Gardening. THE APPLE. 433 Baleavras, Fifeshire, and quoted by Dr Lindley in " Theory of Horticulture," to this effect: " He found that in a cankered orchard the roots of the trees had entered the earth to the depth of 3 feet; and he also ascertained that, daring the summer months, the average heat of the soil at 6 inches below the surface was 61°; at 9 inches, 57°; at 18 inches, 50°; and at 3 feet, 44°. He took measures to confine the roots to the soil near the surface, and the consequence was the disappearance of canker and ripen- ing of the
. The book of the garden. Gardening. THE APPLE. 433 Baleavras, Fifeshire, and quoted by Dr Lindley in " Theory of Horticulture," to this effect: " He found that in a cankered orchard the roots of the trees had entered the earth to the depth of 3 feet; and he also ascertained that, daring the summer months, the average heat of the soil at 6 inches below the surface was 61°; at 9 inches, 57°; at 18 inches, 50°; and at 3 feet, 44°. He took measures to confine the roots to the soil near the surface, and the consequence was the disappearance of canker and ripen- ing of the ; It may be remarked at the same time that too deeply-planted trees, or such as send their roots to too great a depth, are late in their foliation, and seldom bring their fruit to full perfection. Some varieties are more subject to the attacks of canker than others ; and even the same sorts, when planted in different soils, are attacked in one while they escape in others. The Hawthornden apple, for example, is seldom troubled with canker in a strong loamy soil, while in a light sandy one it suffers exceedingly. The larva of Semasia Wceberana has been ac- cused of laying the foundation of canker in full- growii apple trees. Parasitic fungi of the mildew tribe frequently in dry seasons attack the foliage ; but as it ap- pears now to be an established fact that the application of sulphur in a dry powdery state, thrown upon the trees by any of the ingeniously- Fig. 173. Germany than to America, from which country it has been erroneously supposed to have reach- ed us. The American pomologists repudiate its nativity to their country, and assert that Fig. 174. SULPHUnATOR. contrived sulphurating machines—fig. 173, for example—affords a complete remedy, their ef- fects are less to be dreaded. The evaporating effects of long-continued easterly winds during spring are exceedingly injurious to the young expanding leaves of the apple; frequent syringing, to keep up the neces- sary
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
