CARTER: ILLINOIS TREES: THEIR DISEASES 



87 



Fig. 85. — Bud blight of sycamore occurs in the spring before leaves ap- 

 pear. Buds are killed by cankers produced in twigs. 



Fig. 86. — Shoot blight of sycamore occurs shortly after growth of 

 leaves starts in the spring. It results in the killing of young developing 

 shoots to which affected leaves are attached. 



