MASSACHUSETTS 

 AGRICULTURAL EXPERIMENT STATION 



Bulletin No. 279 



December, 1931 



Onion Spraying and Dusting 

 Experiments 



By William L. Doran and Arthur I. Bourne 



In 1927 and 1928 seed onions died prematurely in the Connecticut 

 Valley of a disease here designated as blast. In earlier years downy 

 mildew of onions, also, sometimes caused a reduction in yields. The 

 experiments here described were undertaken with the object of learning 

 to what extent fungicides will protect onions against these diseases. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



