Varroa mites needed for research 5

Varroa are needed as part of a collaboration by Rothamsted Research . It links to a paper that will hopefully be published soon (already accepted): González-Cabrera , J., Davies, T.G.E.,, Field, L.M., Kennedy, P.J. and Williamson, M.S. An amino acid substitution (L925V) associated with resistance to pyrethroids in Varroa destructor. PLOS ONE. The paper describes how molecular biology / chemist colleagues at Rothamsted have identified a mutated gene that is likely to be involved in the mutation that has conferred varroa resistance to the pyrethroid-based varroacide products, Apistan and Bayverol. This was based on samples collected from hives in Bedfordshire & Hampshire.

They are now keen to confirm how common this single mutation is over a broader range of counties, hence the request for varroa. For the genetic analysis, it is important that the mites have not been dead for too long to avoid deterioration of DNA. Live would be even better, that is harder to achieve; they’ll take them dead or alive. Hence the request for varroa mites or board scrapings within a few days of clean boards being added under mesh floors (or trays inserted onto solid floors).

Please send samples directly to  Joel Gonzalez Cabrera, at Rothamsted (see address below). To make sense of the samples, they also need some additional information (as described below) and are particularly keen to receive samples from colonies that have received either Apistan or Bayvarol within the last 5 years (but are equally keen to receive varroa samples that haven’t).”


Collecting Mites Using Bottom Board

  • slide in your clean board (if in already, just slide out to clean first and return).
  • leave in for 24 – 48 hrs.
  • collect all mites as you count them (place in small container), or … just brush everything into a sealable bag.
  • mites from each hive in a different container/bag.

Mites need to arrive within 7 days of boards going in; e.g. set up Sunday, collect Tuesday, & post Tuesday/Wednesday.

Sending Mites

Include the following details:

  • your name.
  • your address (approximate if you prefer; postal address if you’d like to receive results).
  • colony ID.
  • dates & details of previous treatments.

Send mites & details 1st class to:

Joel Gonzalez Cabrera,Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ.

Mites need to arrive within 7 days of boards going in; e.g. set up Sunday, collect Tuesday, & post Tuesday/Wednesday.

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5 thoughts on “Varroa mites needed for research

  • Ursula Collier

    Hi – I am sending our first varroa sample in the first post tomorrow (6-1-14) – after oxalic treatment a couple of days ago – can send more at the next count, if required. my details are included in the package, should you have any questions or requests.

    • admin

      That’s great that you are sending a sample. Just to be clear though, the samples don’t go to Harlow bees, we are just advertising the request for the people doing the research.

      Many thanks