EXPERIMENT STATION BULLETINS. 



6 1 2 



333 



Fig. 9.— Plum Pockets. Taphrina pruni (Fckl.) Tul. 



1. Branch showing inflated plums. 



2. Section through the outer surface of a pocket, showing the mycelium in 

 the tissues. 



3 and 4. Surface view of mycelium between epidermal cells and cuticle. 



5. Section showing young asci just pushing through epidermis. 



6. Asci in different stages of development, one containing spores. 



7. Asci enlarged, showing development. 



8. Spores germinating. After Sorauer. 



LEAF BLIGHT OF THE PEAR AND QUINCE. 



The genuine pear blight and the twig blight of the apple andf pear are 

 caused by bacteria, but the leaf blight is quite different in its nature, and 

 is caused by a fungus. It is particularly injurious to pear seedlings in the 

 nurseries, and often renders them worthless. 



The copper solutions will be found perfect remedies against the disease, 

 and, if applied at the proper time, will secure entire immunity from the 

 attacks of the disease. 



