EXPERIMENT STATION BULLETINS. 633 



safe to introduce a cell or a virgin queen. In colonies where only a 

 dozen or so larvae are affected, the cag:ing of the queen for a few days 

 usually controls the disease. 



McEvoy Treatment together with Re(iueening. — This treatment is de- 

 scribed in Special Bulletin G4, page 4, under the heading of "European 

 foul-brood.-"' This method of treatment is obsolete and should not be 

 considered or practiced unless both of the methods described above have 

 proved unsatisfactory. In that case, get in toucli with the State In- 

 spector of Apiaries, East Lansing, Mich. 



B. F. KIXDICr, 

 Department of Entomology-. 



