What you may have learned about nosema in your beekeeping courses and books is no longer true. Diarrhea is no longer a symptom of nosema. The 'new' nosema is a largely invisible bee disease that silently kills off foragers and impacts the nutrition of nurse bees (and by extension, the larvae they feed), weakening the hive. When you search for signs of disease but you aren't sure what is wrong inside your hive, there's a decent chance that it's nosema.
top of page
bottom of page