THE TKBATMENT OF AMERICAN POULBROOD 



dead of American foulbrood (fig. 4). In such cases a correct diag- 

 nosis can usually be made only after a microscopic examination. 



f ^ 



FiGnBB 4. — Larvae (prepupae) which may or may not be in sealed cells and which are 

 lying lengthwise at the time of death from European foulbrood. Stages similar in 

 appearance to those illustrated here are encountered in Ansricani foulbrood. A. 

 Sunken and perforated capping of a cell containing a larvq,, dead of European foulbrood ; 

 B, larva lying lengthwise in the cell and recently dead of European foulbrood ; O, same 

 as B except in a more advanced stage of decomposition ; D, scale formed by dried-down 

 larva dead of European foulbrood ; E, the remains of a larva dead of European foul- 

 brood, part of which has been removed by the bees. 



Sacbrood kills the larvae while they are extended in the cell (fig. 

 5), and the cappings become sunken and perforated, as in American 

 foulbrood. The dead larvae are yellowish at first, but become 



