Saturday, 6th April 2019

Brinklow Church Hall 9.00am to 12 noon

Nosema is a hidden killer and is one of the main reasons for colonies not surviving winter or failing to thrive. Nosema may also cause serious losses of adult bees and colonies (including the queen) in autumn and spring.


Sometimes evidence of dysentery is present, but often not, so the only way you know if your bees are badly affected is by looking through a microscope. You can find out more about Nosema at the National Bee Unit's website, BeeBase.

We are holding a clinic to enable you to have samples of bees from your colonies tested, to see whether they are infected with nosema. If they do have nosema, we can assess the level of infection and advise you what you can do to improve the health of the colony.

You will need to collect a sample of 30 flying bees from each hive (see below for guidance on how best to do this).

We will try and test all samples, depending on how many we receive on the day.

Could you please let us know whether you are going to bring a sample , so that we know how many we are likely to need to test on the day.

If you cannot come along on the 6th April, but would like to have a sample tested. Please let us know, and we can advise where you can drop the sample off.

Dysentery on brood frame © Gareth Taylor
Dysentery on brood frame © Gareth Taylor

To collect your sample of 30 bees, you need to collect the older, flying bees. One way of doing this, is to briefly block the entrance with something (foam or even paper will do) and wait for the flying bees to return.
You can then use an open matchbox to slide across the entrance, collecting your bees and then close up. Hopefully with your 30 bees safely inside!
You can also take the bees from a super frame (where the collected bees are more likely to be older, flying bees).

Place your sample(s) in the freezer until the day. If you are bringing the dead bees in a matchbox or jar, we will have small plastic bags to transfer them to on the day.

Winter colony death © Gareth Taylor
Winter colony death © Gareth Taylor

We look forward to seeing as many of you as possible on the day. Even if you don’t have a sample of 30 bees available, please feel free to pop along for a cup of tea and a chat. If you have any other bee health queries, please come along and bring as much information as you can, so that we can try and help you with a diagnosis and solution.

There are quite a few of you who have attended at least one of the County microscopy days. If any of you are able to help check the slides on the day or even provide an extra compound

microscope that would be a great help.

We look forward to hearing from you.


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