450 Report of the Mycologist. 



» 

 periments exceptionally valuable, because they sliow what spray- 

 ing will accomplish when no disease is present. It appears that 

 on Long Island it will pay to spray potatoes in any and every 

 season. A bulletin on this subject will soon be ready for pub- 

 lication. 



The spraying experiments with cucumbers were directed 

 against the downy mildew,* a disease which has recently become 

 so wide-spread and so destructive as to threaten the destruction 

 of the pickle industry in southeastern New York. The results 

 are very gratifying. A successful and practical remedy has 

 been found. A bulletin, giving a full account of the disease and 

 its treatment, will be ready for publication early in 1897. 



A large quantity of herbarium material has been collected, 

 and the study of miscellaneous ecoiuomic fungi has occupied 

 considerable time. Some of these miscellameous studies are 

 published with this report. 



The correspondence of the Mycologist during the year has 

 not been as large as it should have been, and it seems necessary 

 to remind farmers again that they can materially aid this De- 

 partment by reporting to the Station any outbreak of plant dis 

 eases which may come under their observation. 



The Mycologist has delivered addi*esses before farmers' meet- 

 ings at Riverhead, Southold, Southampton, Northville, Jamaica, 

 Suifern and Goshen, and before the American Carnation Society 

 at New York. 



* Plasniopara Cubensis (B. and C.) Humph. 



