s 



too iDucli liiLiogeiious iiiaiuire applied late iu the season, or from a 

 warm late (mH, the action of frost during the winter often breaks the 

 tissues in such a manner that they cannot be repaired dnring the next 

 season's growth and dead places are fonnd, often on the trnnk and 

 main branches. 



A A— ^ "'^^^ 



FIG. I. FIG. 2. FIG.3. 



This is sliowu in Figs. 1 and 2, which represent cross sections of 

 the trimks with the injured parts at A, in V\g. 1, and B. in Fig. 2, 

 with two annual la\ ers of wood over the injured part, and Fig. 3, an 

 injured i)lace in the fork of the tiee. 



These conditions are very common to trees from eight to ten years 

 old in most orchards of New England. 



INJURY BY BORERS. 



Injuries as great and often presenting a very similar appearance 

 more frequently occur than that caused by cold, and are the results 

 of a decay of the tissues about the holes made by the peach borer, 

 {^geria exUiosa) . This insect generally works near the gronnd, 

 but may be sometimes found in the forks of the main Ijranches. 



INJURIES BY ACCIDENT. 



If an injury to the peach tree by cold or bj' a borer will bring on 

 a condition rendering it liable to the yellows, the question is suggested 

 will not other injuries result iu a like condition. 



An illustration of this was pieseuted in some experiments made to 

 test the value of adhesive mixtures to cover the buds to protect them 

 from injury by cold, during the winter of 1887 and 1888. 



Among other solutions used was that of linseed oil and turpentine 

 in varying proportions. This was applied to six trees in the same 

 row and in as nearly the same condition as possible, and resulted iu 

 killing five out of the six trees. The sixth tree upon which a thin 

 solution was used, was seriously injured, many of the branches being 



