. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. 788 ENCYCLOPEDIA OF PRACTICAL HORTICULTURE. Fig. 9. Top-Budded on Mazzard Seedling and Headed Back to Produce Stocky Growth. The mazzard body is gummosis resistant. This form of crotch is undesirable. that resistance may possibly be trans- mitted by the scion. Cultiyation Thorough cultivation in the early part of the season is beneficial to the c
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. 788 ENCYCLOPEDIA OF PRACTICAL HORTICULTURE. Fig. 9. Top-Budded on Mazzard Seedling and Headed Back to Produce Stocky Growth. The mazzard body is gummosis resistant. This form of crotch is undesirable. that resistance may possibly be trans- mitted by the scion. Cultiyation Thorough cultivation in the early part of the season is beneficial to the cherry, but spasmodic or irregular cultivation is considered harmful. As far as cherry gummosis is concerned, a tree assisted by proper cultivation and making a vigorous and rapid growth as a result, has a better chance to recover from and outgrow the trouble than a weak tree. Cutting Out the Disease The most successful method of treat- ment in practice among careful cherry raisers consists in the thorough cutting- out early in the season of all diseased, discolored and gum-soaked bark. Per- sistent watch is kept by frequent inspec- tions and as soon as new diseased spots are discovered, they are cut out. Where this has been conscientiously done, and the injuries have been cut out before get- ting very large, the recoveries have often been rapid and the damage from the dis- ease rather small. In cutting out, it is important that all the tissues which are in any degree affected should be removed. The wound thus made should be steril- ized, preferably by the application of a solution of corrosive sublimate (1-1000); when dry, large wounds should be coated with walnut grafting wax* as a protec- tion against the entrance of destructive wood-rotting fungi. It is often impos- sible to discover at once all the affected tissue around a gum exudation or canker, and a second or third cutting-out may have to be made during a season, but per- sistence will be rewarded in most cases by a rap
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