BLACKBERRY DISEASES 169 



Strelin, S. Beitrage zur Biologie und Morphologie der Kuehneola 

 albida (Kiihn) Magn. und Uredo Mulleri Sehroet. Mycol. Centbl. 

 1 : 131-137. 1912. 



BLUE-STEM 



Caused by Acrostolagomus caulophagus Lawrence 



Blue-stem is better known on raspberries than on blackberries. 

 Little trouble has been reported from this disease on the latter 

 fruit. It is a Pacific Coast disease at present. (See Raspberry, 

 page 416.) 



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