142 ILLINOIS ACADEMY OF SCIENCE 



the same year (1903), reports satisfactory results in 

 control of sooty blotch while spraying for apple scab. 



The first notice the writer has seen of the troubles in 

 Canada, is that by Macoun (1903), who discusses the 

 ''sooty fungus or fly speck fungTis" with reference to 

 its occurrence in Canada and methods of treatment. 

 Sheldon (1905) finds the trouble prevalent in West Vir- 

 ginia. Wilcox (1905) states that sooty blotch is com- 

 mon in Alabama, and discusses the characteristics of the 

 fungus as it appears in that state, with recommendations 

 for its control. Clinton (1906) believes that sooty blotch 

 is ''one of the most serious fungous troubles of the apple 

 in Connecticut". The presence of fly speck in Maryland 

 is noted by Norton and Symons (1907), and recommenda- 

 tions for spraying are given. The fact that the fungus, 

 which is called sooty blotch and fly speck, is less common 

 in Maine than farther south, is emphasized by Morse and 

 Lewis (1910). 



The first recorded appearance of sooty blotch in Eng- 

 land is by Salmon (1910), and anxiety is expressed that 

 it may become serious, like other troublesome fungi im- 

 ported from America. The same year, Stevens (1910) 

 gives fly speck a minor place among North Carolina 

 fungi, and claims its control by proper spraying. Howitt 

 and Hay hurst (1911) find "fly speck fungus" on woody 

 portions of various orchard plants in Arkansas, though 

 they refer to no host plants by name. Howitt (1911) 

 briefly discusses sooty blotch in Canada, with sugges- 

 tions for control. Ballon (1912) gives results of spray- 

 ing experiments in sooty blotch control, in Ohio. Beach 

 (1912) implies the common occurrence of the two fungi 

 in Iowa, by including recommendations for their control 

 in a spray schedule, while others; Brooks (1912), Clinton 

 (1912), and Quaintance and Scott (1912) in the same 

 year publish spray schedules, the use of which is intended 

 to hold the troubles in check. 



In 1916, Salmon and Wormald (1916) find sooty blotch 

 on the pear, for the first time, in England. From 1916 

 to the present time, still greater stress has been laid on 

 spraying experiments in discovering the best methods of 



