202 Proceedings of Indiana Academy of Science. 
ROSE. 
Powdery mildew (Sphaerotheca pannosa) was prevalent this year. Black 
spot caused by Diplocarpon rosae (Fig. 9) occurred in greenhouses. 
Fig. 9. Rose black spot. 
RYE. 
Ergot was noted on volunteer rye. Stem rust was found in one field in 
Lagrange county by R. J. Hosmer. Six specimens of a head smut (Ustilago 
sp.) were found by Jackson in one field in Porter county. 
SOYBEAN. 
Bacterial blight caused by Bacteriwm glycineum was prevalent in fields 
near Lafayette. Leaf infection was very heavy but pod infection was not 
as abundant. 
An unmistakable mosaic disease occurred on a small percentage of the 
plants in one field. The leaves showed typical mosaic symptoms, the pods 
were fewer and smaller, and very few seeds were produced. In fact mosaic 
plants were practically a total loss so far as seed production was concerned. 
There were several rows of garden beans along one side of this field 
which were severely affected with mosaic and it is possible, of course, that 
the disease may have crossed over to the soybeans from the garden beans. 
Bhi 
SPINACH. 
The non-parasitic vellows or blight which is so severe in the truck region 
near Norfolk, Va.. was found near Goshen in October. Typical stunting 
of the plants and yellowing of the leaves were produced. 
SQUASH. 
Bacterial wilt was noted near Lafayette. 
STRAWBERRY. 
Leaf-spot caused by Mycosphaerella fragariae was of general occurrence. 
