Rust 159 



and upon the lower limbs of trees in dryer locations. It is 

 purely a skin disease and causes no injury aside from dis- 

 figuring the appearance of the fruit. Can be easily con- 

 trolled with bordeaux mixture or any of the ordinary 

 fungicides. 



Mildew. The powdery mildew often occurs on the 

 young shoots of nursery stock, making a dense felt-like 

 growth over the leaves and twigs. It can be controlled 

 with any of the usual fungicides. 



Apple blossoms. On the left, just right for the first ap- 

 plication of spray to control scab and codling moth. Cluster 

 on the right is too late for the codling moth. 



Rust. The bright orange colored patches of rust that 

 are to be found on the leaves and fruit of apples, pear and 

 quince, as well as upon the wild thorn and crab trees, are 

 caused by the same fungus which makes the "cedar ap- 

 ples" on cedar trees. It spends a part of Its existence on 

 the apple trees and the other part on the cedar, so that 

 the most effective means of controlling this fungus is to 



