398 



Bulletin 75. 



one may see these tips expanding prematurely in earliest spring. 

 Frequently, in this state, these tips are so little pronounced, even 

 upon trees badly diseased, that they are likelj^ to pass unnoticed ; 

 and in such cases one must rely very largely upon the fruit for a 

 diagnosis of the disease. In rare instances, the blossom buds 

 upon diseased shoots may expand in the fall. 



The third symptom of yellows 

 is the appearing of abnormal 

 shoots along the larger branches 

 or even upon the trunks. These 

 yellows shoots generally appear 

 earlier in the season than the 

 tips, and may make consider- 

 able growth. They are marked 

 by short and narrow leaves which 

 stand at nearly right angles to 

 the stem, as seen in Fig. 5. They 

 rarely grow more than a foot 

 in length in this state. But the 

 most striking form of this third 

 feature of yellows symptoms, is the 

 bunchy growth shown in Fig. 6. Ordi- 

 narily a healthy peach shoot does not 

 branch as it grows, but makes a straight 

 stem one year, and branches the next 

 year. These yellows shoots, in confirmed cases 

 of the disease, may branch into several or many 

 fine branchlets the very year in which they start. 

 These tufted shoots may spring from old branches 

 two and more inches in diameter, or even from the 

 main trunk itself (Fig. 6). They often spring 

 out with uncommon luxuriance from the stumps 

 of trees which have been cut with yellows. These 

 bunchy growths rarely appear before the third 

 year of the disease in this state, and in the great majority of cases 

 of yellows which I have seen in New York they are wholly absent, 

 even in the final stages. They appear to be less abundant in dry 

 years. It is the first two symptoms — the red-spotted fruit and the 



5. Yellows 

 shoot. 



