132 Report of the Department of Botany of the 



been excessively virulent. In some localities currant leaves have 

 been so severely attacked by it that their vigor was destroyed 

 and they fell to the ground long before the usual time. In my 

 own garden the currant bushes were as destitute of foliage in 

 August as thev usuallv are in November." 



Since 1889 it has been mentioned by PammeP* as occurring on 

 red currants in Iowa and Halsted^^ has reported its occurrence 

 on cultivated gooseberries in New Jersey; but we find nothing in 

 the literature to indicate that ithasbeen at all destructive during 

 the past eleven years. However, from our own observations we 

 are inclined to believe that in New York, particularly in the Hud- 

 son Valley, it occurs to some extent nearly every season and 

 that, in some instances, it has been destructive. June 12, 1897, 

 Mr. H. R. Leeder of New Paltz reported to the station that his 

 currants were dropping their leaves badly. The specimen leaves 

 accompanying his letter showed an abundance of Gloposporium 

 ribis which was probably the cause of the leaves dropping. It is 

 noteworthy that this outbreak, like the one of the present season, 

 occurred before the middle of June. On July 7 of the same year 

 Mr. F. A. Sirrine observed that in the vicinity of Highland cur- 

 rants were dropping their leaves badly. Specimens of the fallen 

 leaves were examined by one of the writers of this article and 

 found to be infested with Cercospora ancjulata and Gloeosporium 

 rihis. June 28, 1900, we observed a plantation of red currants on 

 Long Island which was severely attacked by GlceospoHum rihis. 

 Septoria ribis was also present in small amount. In this planta- 

 tion the Gloeosporiiim had attacked the fruit stems to so great an 

 extent as to attract the attention of the foreman in charge. 

 Nevertheless, we saw no evidence of damage from this cause. 

 None of the berries were dropping or shriveling. Dr. B. M. 

 Duggar informs us that (ilccosporium ribis was abundant on cur- 



"rammel, L. H. Journal of Mycolofn/, 7:101. In a letter dated Novem- 

 ber 5, 1901, Px-of. Pammel writes us that he has not observed the disease 

 ill Iowa since 1891. 



''Ilalsted, B. D. N. J. Agr. Coll. Exp. Sta. Report for ISDo, p. 331. 



