What do sticky or "ropey" larvae indicate in AFB-infected colonies?

Sticky or "ropey" larvae are a clear indicator of American Foulbrood (AFB), which is a serious bacterial disease that affects honey bee larvae. When the disease is present, the larvae become infected and their bodies break down, resulting in a ropy consistency when disturbed. This characteristic appearance is due to the presence of the bacteria Paenibacillus larvae and is a key sign that the colony is compromised by this infection.

Recognizing these symptoms is crucial for a beekeeper, as AFB can spread quickly within and between colonies if not managed properly. The presence of sticky larvae serves as a prompt for beekeepers to take action, such as reporting the disease and employing control measures to prevent further damage to the hive and surrounding colonies. This understanding emphasizes the importance of regularly inspecting colonies to detect potential diseases early on.