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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.

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.

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.