Nosema disease
Nosema disease in honey bees is caused by microsporidian parasites, primarily Nosema apis and Nosema ceranae. These parasites infect the honey bee's midgut, disrupting digestion and nutrient absorption. Nosema infections can lead to dysentery, reduced lifespan, poor colony buildup in spring, and decreased honey production. Nosema ceranae is more virulent and has largely replaced Nosema apis in many regions. Diagnosis involves microscopic examination of bee gut tissue or spore counts. Nosema disease is stress-related and exacerbated by poor nutrition, mite infestations, and unfavorable weather conditions. Preventative and treatment strategies focus on reducing stress and improving colony health. Nosema spores are highly resilient and can persist in hive equipment for extended periods, posing a risk of reinfection.
- Fumagillin-B (Fumadil-B)4
Fumagillin-B, sold under the trade name Fumadil-B, is an antibiotic historically used to treat Nosema disease in honey bees. It is effective against Nosema apis but less so against Nosema ceranae. Fumagillin-B works by inhibiting spore development within the bee's gut. It is administered in sugar…
📌 commercial4/16/2025, 9:22:01 PM
🛠️ Syringe or measuring device for syrup
- Hygienic hive management3
Hygienic hive management is a crucial non-chemical approach to minimize Nosema disease. It involves practices that reduce spore load and stress on bee colonies. Regularly cleaning and sanitizing hive equipment, especially combs, reduces the buildup of Nosema spores. Replacing old combs removes a…
📌 diy4/16/2025, 9:22:01 PM
🛠️ Hive tool, cleaning supplies, replacement frames
- Essential oils (prophylactic)2
Certain essential oils, such as lemongrass and thyme oil, are explored for their potential prophylactic (preventative) benefits against Nosema disease. These oils have antimicrobial properties and may help to suppress Nosema spore development or boost bee immunity. They are typically added to sugar…
📌 diy4/16/2025, 9:22:01 PM
🛠️ Essential oils, syrup mixing container