Technical Bulletin 149, U. S. Dept. of Agriculture 



Plate 3 



''■*:.% 



■" "-S, 







A 



A 



A.— Bees dead of Aspergillus mycosis caused by natural infection with Aspergillus ochraceus. 

 B.— Worker bees dead of Aspergillus mycosis caused by natural infection with A. flavus. 



