

3 ( 
Figs 1.— Lire STAGES OF “BLISTER- MITE: 
Pibgouees Warvases. Acie 
(Enlarged. ) 

Fic. 2.— PHOTOMICROGRAPHS OF APPLE AND 
PEAR MITEs: 
1. Phyllocoptes schlechtendali. Epitrimerus pyri. 
3. Eriophyes pyri. 
Pie eee 
