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European Foulbrood (Melissococus pluton) Abbreviated as EFB
How to recognize EFB:
Unlike AFB, larvae infected with EFB typically die BEFORE being capped. They lie twisted at the bottom of the cell in a reverse corkscrew shape. They will be a tan to brown color and will appear melted. EFB-killed larvae do not exhibit the same "ropy" results of a stick test like AFB. There may be a sour odor present but it will different than AFB.
How to treat EFB:
EFB can be effectively controlled with antibiotics (Terramycin). Also, requeening your hive will help as it breaks the brood cycle and the EFB reproduction cycle.
How to prevent EFB:
Keep a young vigorous queen in the hive (requeen every couple of years) and help the hive stay healthy and strong. Preventative treatments with antibiotics will help.
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