Nosema

Nosema is a fungus that affects adult bees. With the correct treatment colonies will respond favorably. Nosema is most prevalent in colonies that are stressed, shipped in a package or confined. 

Symptoms/Identification

The symptoms of Nosema are rather subtle.

  • Crawling disoriented bees

  • K-wing adults

  • Defensive bees

  • Bees abandoning the brood to cluster elsewhere

  • Colonies not consuming supplemental feed

  • Midgut is swollen and creamy white in color

  • Heave consentration of Bee feces at hive entrances, top bars, inner walls, and on other items in theye apiary.

Note: Dysentery can also be caused by poor quality food stores, confinement, and feed with heavy concentration of impurities in it.

How it Spreads

  • Infected Equipment

  • Robbing Bees Drifting

  • Infected Food Stores or pollen

 

Treatment

Their are no registered treatments for Nosema

Prevention

The most effective control of the disease relies on maintaining strong hives and taking precautions to reduce the build-up of the disease.

Maintain strong, healthy hives and make sure the appropriate nutrition is available to bees. Using young queens, removing old comb will help  keep colonies strong and remove possible causes of stress, which can make the colony more susceptible to the disease.

It is also good practice to try and avoid moving hives, or inspecting hives during winter, as inspections and movements at this time can increase the stress levels within the colony. When getting hives ready for winter, always ensure that there are not excess boxes on the hive, as well as ensure that  there is enough good quality honey and pollen for the colony. If there is not, consider feeding a protein rich pollen supplement and sugar feeding.

Bees can be sampled for Nosema using a microscope. scientificbeekeeping.com has a wealth of information on Nosema.

Timber Creek Apiaries

469-652-9842

timbercreekapiaries@gmail.com

4083 County Road 4509  Commerce Texas 75428