. Better fruit. Fruit-culture. IRllliii Largest slock of SnrfiM Irrigation Pipe and Pipe Equipemenl OD the Padbc Coast Are you helping to pay the $75,000,000 toll taken from the growers of the country annually by Jack Frost? The Bolton Heater is The Safest Means of Frost Prevention Don't experiment with makeshift methods. Bolton Orchard Heaters are sure. They main- tain the temperature, distribute the heat uni- formly, and prevent frost damage. Send for Booklet 5 Tells you all about frost prevention. Filled with valuable information for the grower. W. R. AMES CO., 8lh and Irwin StreeU San Fran
. Better fruit. Fruit-culture. IRllliii Largest slock of SnrfiM Irrigation Pipe and Pipe Equipemenl OD the Padbc Coast Are you helping to pay the $75,000,000 toll taken from the growers of the country annually by Jack Frost? The Bolton Heater is The Safest Means of Frost Prevention Don't experiment with makeshift methods. Bolton Orchard Heaters are sure. They main- tain the temperature, distribute the heat uni- formly, and prevent frost damage. Send for Booklet 5 Tells you all about frost prevention. Filled with valuable information for the grower. W. R. AMES CO., 8lh and Irwin StreeU San Francisco, Calif. be .so headed as tn give a good spacing of branches and avoid weak crotches. Second, the main branches of the trees shoidd be kept at about equal vigor. This is done by cutting back and reducing the leaf area on the more vigorous branches, thus giving the weaker branches a larger proportion of the food. Third, we should constantly try to avoid weak forks. This is brought about by avoiding equal cut- ting, and where two branches form a union we should rather cut so that one branch is longer than the other. The shortened branch thus becomes a lat- eral of the longer brancli and one avoids in this way the weak U or V- .shaped crotches which otherwise will become very prevalent. During the first three years of a tree's life, ]jruning is especially valuable in determining the type and direction of growth. By proper heading and thin- ning, laterals are forced out at desired l)oints and a strong framework is built up for future years. By the time the trees are three years of age a certain amount of summer pruning may be given to advantage. This pruning nor- mally should come from about the middle of June up to the middle of July, or at such a time when the branches have made a desirable termi- nal gi-owth. Light heading at this time does not remove very much wood but causes the tree to throw out laterals, thus giving us the opportunity of gain- ing a whole year in
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