. Fig. 38.—Peaches showing "; on the roots, crowns, and often on trunks and limbs. The trouble is due to Phytomo7ias tumefaciens. See page 7 under "Almond," for full discussion of crown gall. The peach root is very susceptible to this bacterial disease. In new plantings much care should be taken to avoid infected nursery stock. Delayed Foliation, Dormosis.—In certain seasons, growth fails to start at the proper time in spring and the trees remain bare and appar- ently dormant until well into the summer. The leaves and new shoots may eventually develop in a weak, str


. Fig. 38.—Peaches showing "; on the roots, crowns, and often on trunks and limbs. The trouble is due to Phytomo7ias tumefaciens. See page 7 under "Almond," for full discussion of crown gall. The peach root is very susceptible to this bacterial disease. In new plantings much care should be taken to avoid infected nursery stock. Delayed Foliation, Dormosis.—In certain seasons, growth fails to start at the proper time in spring and the trees remain bare and appar- ently dormant until well into the summer. The leaves and new shoots may eventually develop in a weak, straggling manner, or the top may die back. Walnuts, apples, and other fruit trees are similarly affected. This condition occurs in the warmer sections of the state, in seasons following warm, frostless winters when there has not been enough cold weather to break the rest period of trees and stimulate new growth.


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