Indiana Plant Diseases. 197 
Fig. 7. Onion smut. 
fairly well controlled by the formalin drip on the seed drill. The soil 
of these fields is heavily infested. 
Smudge caused by Colletotrichum circinans occurred to some extent on 
white bulb onions in market gardens, 
PARSNIP, 
A leaf-spot of unknown cause and nematode root-knot were found near 
Goshen, 
PEACH. 
Taking the state as a whole, leaf curl caused by Hxroascus deformans was 
by far the most destructive peach disease and according to Burkholder was 
much worse than it was during the three previous seasons. Burkholder 
reports that the disease was severe in Marion, Henry, Shelby, Bartholomew, 
Brown, Monroe, Putnam, Knox, Daviess, Gibson and Vanderburg counties 
and especially severe in Morgan and Montgomery counties. Not only was 
