DUSTING AND SPRAYING EXPERIMENTS OF 1918 AND 1919. 



11 



CHART III. Diagram showing arrangement of treeii and ploty in the B. F. Hall orchard at fielding. 

 B, Baldwin; C, check; S, small trees. Numbers indicate count trees. 



Applications. Four applications were made as follows: 



1st. The pink or cluster application. 



2nd. The calyx application. 



3rd. Two weeks after second. 



4th. First week in August. 



The dusting was done with a large power duster. The trees were 

 dry when all dusting was done, except for the last application. The 

 trees were wet from a light shower which fell just before the dusting 

 was done. The spraying was not always done uniformly as the sprayer 

 frequently did not maintain a satisfactory pressure. 



RESULTS. 



Foliage. On dusted trees there was no foliage injury but a very 

 small amount of scab. 



On sprayed trees there was no scab but a small amount of foliage in- 

 jury. The injury w r as very slight. 



On the check there was no injury but some scab. 



TABLE IV. RESULTS WITH BALDWIN AT BELDING, 1918. 



