194 Proceedings of Indiana Academy of Science, 
CHERRY. 
Leaf-spot (Fig. 5) due to Coccomyces hiemalis was the most serious 
disease. Yellowing of the leaves and defoliation are caused and unaffected 
Fig. 5. Cherry leaf spot. 
trees are rarely found. Powdery mildew (Podosphacra orycanthae) was 
noted at Wanatah. 
CHRYSANTHEMUM. 
Leaf-spot due to Septoria chrysanthemella was noted in a greenhouse. 
CLOVER. 
Anthracnose due to Colletotrichum trifolii was the most important disease. 
CORN. 
As was the case in 1919, the Fusarium root, ear and stalk rots were the 
most serious diseases. Pipal reports three fields plowed up because of root 
rot. 
Smut was generally abundant this year and was especially severe on 
sweet corn. Gregory reports observations which indicate that early smut 
