CHAPTER XXXIV. 



FOUL-BROOD INFECTIOUS DISEASE OF BEES IN ITALY PEBRINE 



FLACHERIE INFECTIOUS DISEASE OF CATERPILLAR. 



FOUL-BROOD IN BEES. 



FOUL-BROOD is a contagious disease attacking bees and especially the 

 larvae. The larvae rapidly lose their healthy appearance, die anil 

 decompose, turning into a coffee -coloured mass. The cells of the 

 honeycomb are mapped out by the dark-brown cappings of the cells 



FIG. 192. DISEASED COMB (COWAN). 



containing the diseased larvae. The decomposite. , ted with 



the production of an unpleasant odour, which ran be detecte 

 some distance from an infected hive. The disease has been 1 

 from very early times. Preuss investigated it mi-r- 

 attributed it to micrococci." These were really the spoi 

 bacillus, which was first observed by Cohn. Later, Ohfldfr 



IM 



