Massachusetts Agricultural CoUiu 

 AMHERST, MASS. 



massachusetts 

 Agricultural Experiment Station 



BULLETIN No. 210 AUGUST, 1922 



Injury to Foliage by Arsenical Sprays 



11. CALCIUM ARSENATES AND 

 ARSENITES 



III. NOTES ON OTHER ARSENICALS 



By H. T. FERNALD and A. 1. BOURNE 



This bulletin supplements the report on foliage injury from 

 arsenical sprays recently published as Bulletin No. 207. Of 

 the materials here treated, calcium arsenate is the oply one 

 which can be used with safety, and this has proved less satis- 

 factory than the lead arsenates. 



Requests for Bulletins should be addressed to the 



AGRICULTURAL EXPERIMENT STATION 



AMHERST, MASS. 



