PEACH YELLOWS. 



I. Yellows " tips 



HERE is no disease or difficulty of 

 fruit trees in New York state which 

 is the subject of so much misappre- 

 hension as the yellows of the peach. 

 Not only are the origin and course of 

 the trouble obscure, but the disease 

 itself is frequently not recognized as a dis- 

 tinct and fatal malady, but is confounded 

 with any weak or yellow condition of the 

 tree. The name of the disease is unfor- 

 tunate, since it leads people to regard 

 yellowness as one of the first and 

 indisputable symptoms of yellows, 

 while, in fact, the disease may be- 

 come well seated and may show its 

 unmistakable symptoms in trees which 

 are dark green and robust. It is for 

 the purpose of enabling fruit growers 

 to distinguish the true yellows from a 

 multitude of other ailments that I 

 have prepared the present report. 



Note. — Those who desire to make a more particular study of peach yel- 

 lows, should consult the following publications of Dr. Brwin F. Smith, who 

 is the recognized authority upon the subject : 



Peach Yellows : A Preliminary Report. Bull. 9, Div. of Botany, Dept. 

 Agric. 1888. 



Additional Evidence 07i the Communicability of Peach Yellows and Peach 

 Rosette. Bull, r, Div. Veg. Pathology, Dept. Agric. 1891. 



The Chemistry of Peach Yellows. land II. Proc. Anier. Pomol. Soc. 

 1889 and 189 [. 



Peach Yellows. Report of State Hort. Assoc. Penn., 1893. 



Experifnenls luith Fertilizers for the Prevention and Cure of Peach Yel- 

 lows. Bull. 4, Div. Veg. Pathology, Dept. Agric. 1893. 



Peach Yellows a7id Peach Rosette. Farmers' Bull. 17, Dept. Agric. 1894. 



