. Commercial apple growing in California. Apples. lfiiliI«Mifi^ Fig. 13. Same tree as in figu pruning. JfeilSS 12 aft< and, if continued, loss of vigor. On the ideal mature tree, shoots average at least 10 inches of new terminal growth per shoot each year. Thus the tree increases and maintains its fruiting area while producing satisfactory annual crops. With most trees that have received regular pruning previously there is little necessity for more than a light thinning and cutting back of the upper branches to laterals; this will prevent the tree from getting too high for economical sprayi
. Commercial apple growing in California. Apples. lfiiliI«Mifi^ Fig. 13. Same tree as in figu pruning. JfeilSS 12 aft< and, if continued, loss of vigor. On the ideal mature tree, shoots average at least 10 inches of new terminal growth per shoot each year. Thus the tree increases and maintains its fruiting area while producing satisfactory annual crops. With most trees that have received regular pruning previously there is little necessity for more than a light thinning and cutting back of the upper branches to laterals; this will prevent the tree from getting too high for economical spraying and picking operations. It is desirable to provide ladder spaces for pruning, thin- ning and harvest operations. The center of the tree should be kept fairly open with varieties for which fruit color is an important factor; if this has // 1 / H It. Fig. 14. Same tree as in figure 13 after a few additional light thinning- out cuts. Any advantages of the ad- ditional thinning are debatable, par- ticularly in relation to the time required to do it. Spreaders at this age of tree are of limited value, ex- cept when used to help force a scaf- fold outward (as illustrated by the branch on the left turning inward in figure 13). been neglected for several years it is best to thin out surplus branches over a period of two or more seasons. Heavy removal of branches can upset the balance of the tree and expose scaffold branches to sun- burn damage. Any heavy pruning will encourage a large amount of vegetative growth. Old bearing trees producing small fruit will benefit from heavy pruning, which stimulates new shoots and fruiting spurs. [19]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Koch, E. C. (Edward C. ), 1914-1992; Alderman, DeForest Charles, 1914-; Brown, Dillon S. , 1912-1998. [Berkeley, Calif. ] : Divis
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