24a EXPERBIEXT STATION. [Jan. 



Project 14. "Investigation on control of tobacco wildfire." 

 Professor Chapmax and Professor Axdersox. 



This project was organized in May, 1921, in response to an 

 emergency brought about by the sudden and general ap- 

 pearance of tobacco wildfire in the seed-beds of the Con- 

 necticut valley. Previous reports of its appearance had been 

 limited to field outbreaks at several points in 1919 and 1920. 

 Because of the great importance of this crop in the Con- 

 necticut valley, projects of seemingly lesser importance were 

 laid aside in order to meet the emergency. A preliminary 

 report on investigations was published in the fall as station 

 Bulletin No. 203. Work in greenhouse and laboratory was 

 conducted throughout the winter, and will be carried to seed- 

 beds and plots this coming season. 



Cranberry Station. 



Project 2. "Cranberry disease work." 



Professor Franklin. 



This project was conducted, as heretofore, in co-operation 

 with the Bureau of Plant Industry of the United States 

 Department of Agriculture. Additional observations were 

 made on the distribution of the "false blossom" disease. 

 Extensive cultural work was done to determine the periods of 

 greatest infection from different putrefactive fungi, and to 

 discover the effect of June flooding on infection. Further tests 

 arid observations on the effect of reflooding on the "rose 

 bloom" disease were made. Spraying tests with lead arsenate 

 as a cranberry fungicide were continued extensively. 



Spray Materials — Their Nature and Use. 



Deyartiuent of Botmiy. 



Project 12. "Tests of fungicides on potatoes." 



Professor Osmun and Professor Anderson. 



This work was planned to test the value of various types of 

 commercial fungicides used for spraying potatoes, in comparison 

 with home-mixed Bordeaux, and is co-operative between the 

 Department of Botany, the farm department and the service 



