364 



STATE BOARD OF AGRICULTURE. 



DISEASES OF THE PEACH. 



PEACn YETXOWS. 



V<^o.^V VK.^WCiv^^ 





r* 



x^^W hV/ir :>/^ 



V 



^/sly/ 



A 



\ 



U * 



FiPT, 17. — Peach Yellows. A, B, fruit from yellows affected tree, showing surface and flesh 

 spotted and streaked with red; C, a prematurely ripened fruit on affected branch, which is 

 attached to one bearing healthy foliage and fruit, a, stub of tree budded witlx bud from yellows 

 affected tree, and .showing the characteristic growth due to the disease, which has also affected 

 the lower branch b; a, affected tree sliowing forced dormant buds which are giving rise to 

 bunches of wir.v twig.s and narrow leaves: b, one of these clusters enlarged; c, a healthy leaf by 

 the side of a branch bearing di.seased foliage, showing the contrast in size. (A, B, a, b, after 

 Erwin Smith, the others original.) 



Although the disease known as Peach Yellows has been known in this country 

 for more than one hundred years the real cause of the malady is still unknown. 

 Like consumption in the human race "yellows" Is one of the most dreaded of the 

 diseases to which the peach is subject, for when once this insidious foe appears 

 in a tree certain death is the result. 



In bearing trees the premature ripening of the fruit is one of the first indica- 



1 



