BLACKBERRY DISEASES 169 
Strelin, S. Beitrage zur Biologie und Morphologie der Kuehneola 
albida (Kiihn) Magn. und Uredo Miilleri Schroet. 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.) 
