172 ILLINOIS ACADEMY OF SCIENCE 



Stevens, F. L., and Hall, J. G. 



1913. Sooty Blotch. PhyllacJiora pomigena (Schw.) Sacc. 



Fly Speck. LeptothyriuTn povii (Mont. et.Fr.) Sacc.) 

 I7i Diseases of Economic Plants, p. 94-95, fig. 38. New 

 York City. 

 Give description of fungus, with control measures. 



Sears, F. C. 



1914. Sooty Blotch and Fly Speck. In Productive Orcharding, 



p. 169. Philadelphia. 

 Believes the two "diseases" similar, or may even be 

 caused by same fungus. Superficial. Orchards sprayed 

 for scab usually show very little of it, tho one later 

 application may be necessary. 



Theisen, S. J., and Sydow, H. 



1915. PhyllacJiora pomigena (Schw. sub Dothidia Sacc. 



In Dothideales Annales Mycologici 13: p. 575. 



Authors list P. pomigena under doubtful species. 



Wilkinson, A. E. 



1915. Sooty blotch and fly-speck fungus. Leptothyriwrn pomi 



(Mont. & Fr.) Sacc.) In The Apple, p. 226-227, fig. 102. 

 Boston, Mass. 



Brief general notes as to appearance and salability 

 of affected fruit are given, with list of most sus- 

 ceptible varieties. Spray treatment recommended. 



Blair, J. C, et al. 



1916. Field Experiments in Spraying Apple Orchards. 111. Agr. 



Exp. Sta. Bui. 185, p. 191, 202, 204-5. 



The relative merits of Bordeaux mixture and lime sul- 

 fur in sooty blotch control discussed. Reported slight 

 control with arsenate of lead used alone. Spray 

 schedule recommended. 



Higgins, B. B. 



1916. Nomenclature of the fungus. In Plum wilt. Its nature and 

 cause. Ga. Agr. Exp. Sta. Bui. 118, p. 13, 14. 

 Discusses his reasons for the name he gives plum wilt. 



Salmon, E. S., and Wormald, H. 



1916. Sooty Blotch of the Pear. In Gard. Chron., o9 ; p. 58-59, fig. 

 The "disease" reported as present on Catillac pears. 

 Description of symptoms. Claimed to be second to 

 Thuemen (1879) in recording "disease" on pears. 



Stevens, F. L. 



1916. A convenient, little-known method of making micromounts 

 of fungi, Phytopath., 6, p. 367. 



Describes the use of celloiden for this purpose. 



