Peach Blight 165 



the berries when young, causing a mouldy growth to cover 

 the entire fruit and even an entire bunch of fruit. 



This fungus is of distinct historic importance, since it 

 was the disease which was introduced into Europe and 

 which later led to the discovery of bordeaux mixture. 

 This spray, applied before the buds open, and again at 

 intervals of two weeks until the flowers open, then another 

 application immediately after the flowers fall, will hold 

 the disease under control. 



Powdery Mildew. In moist seasons, and in low ground, 

 this fungus frequently causes trouble by its attacks upon 

 the foliage, and to a small extent the berries of the grapeJ 

 It appears as a powdery, mouldy growth on both the upper, 

 and under surface of the leaves, causing them to arch more 

 or less when the disease is very bad. It can be controlled 

 by any of the usual spraying operations. 



Peach Diseases 



Peach Blight 



This disease occurs at the present time in the Western 

 states, where it has become quite common from Colorado 

 westward to the Pacific coast. 



The disease makes its first appearance in the fall and 

 during the winter, in which the buds are killed and growth 

 consequently prevented for the next spring. It attacks the 

 fruit early in the season, on which it produces small cir- 

 cular spots, some of which may be covered with a drop 

 of gum. On the twigs it produces spots, which may be 

 more or less gummy, and some of which may encircle the 

 twig, causing it to die. 



It attacks both the peach and the apricot, and causes a 

 greater loss to the Western fruit men than any other one 

 fungous disease. It can be very easily controlled with 

 either bordeaux mixture or lime-sulphur. Fall applications? 

 are most effective and should be made as soon after the 

 late fruit is gathered as possible. If San Jose scale it pres- 



