EAR ROTS 



223 



Remedy. Crop rotation seems to be the only remedy. The 

 fungi harbor in the old corn stalks. Corn should not be planted for 

 two years thereafter where there has been much of this disease. 



THE COB ROT OF CORN. This disease is manifested in a 

 softening and decay of the cob, rendering the grain unmerchantable. 

 The fungus causing this disease belongs to the genus "Coniosporium." 

 It does not seem to affect the living corn plant. The mycelium pene- 

 trates the various cob tissues and the lower portion of the kernel. It 

 may cover as much as the lower half of the kernel. The infected 

 corn is damaged for feeding or marketing. 



BEETLE OF THE SOUTHERN CORN ROOT WORM AT 



WORK EARLY IN THE SPRING 



The stalk borer is also shown on the upper leaf. 



INSECT ENEMIES 



The newly planted seed, the young plant, the growing stalk, the 

 developing ear, and the stored grain, are all subject to insect enemies. 

 Each year pests which have heretofore been of little economic import- 



