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Sarah Cross

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Sarah Cross last won the day on February 27 2017

Sarah Cross had the most liked content!

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About Sarah Cross

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    Bee Research


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  1. Bees needed for research trial

    email me your address
  2. Bees needed for research trial

    brilliant. Email your address and i will send you container and instructions Thank you so much
  3. Bees needed for research trial

    correct. If you email me your address i will send you a container and instructions. sarah.cross@plantandfood.co.nz
  4. Evidence of resistance to synthetics

    I have no argument with anyone
  5. Evidence of resistance to synthetics

    Tristan I'm sorry but this isn't true. There is no scientific evidence as yet that proves that bees here in NZ are resistant to the strips. It may be that our threshold levels are now much lower than they were originally, meaning that we are actually treating when there are too many varroa in the hive to overcome. There are also differences in how people use the strips and when. Plus insect lifecycles are extremely quick and resistance can be bred in and out just as quickly. All the 'evidence' of resistance is anectodal and we are trying our best to find answers right this very moment. Im not sure which non-synthetics you are suggesting but often they are very toxic to bees plus their efficacy is often not very good or sporadic.
  6. Bees needed for research trial

    Where do you work John?
  7. Bees needed for research trial

    The results will come from the overall organiser of the trial and will probably be in a report form so not for each specific beekeeper but more in geographic area My email is in the original posting
  8. Bees needed for research trial

    We are testing the VARROA's resistance to chemical strips - not the bees themselves. Therefore we require varroa that has survived in the colony and has then bred and perhaps passed on this resistance
  9. Bees needed for research trial

    Bees and varroa breed very quickly. Mites from spring last year would be dead and a new generation would be in the beehive. We want to test these and see if they were bred from resistant mites that survived the spring treatment
  10. Bees needed for research trial

    We would like to gather samples from all over NZ to try and see where (if any) resistance is
  11. Bees needed for research trial

    We take the bees and wash the mites off them. We need the sample to be of bees so that we can use the same laboratory method on all of them and keep it scientifically accurate. Resistance changes over time and because insect lifecycles are very quick these resistances could alter.
  12. Bees needed for research trial

    Resistant to synthetic pyrethroids = Varroa strips
  13. Bees needed for research trial

    yes i would like only one sample from each beekeeper from one hive. Results would be given in a report so possibly not for each specific person but just the overall findings
  14. Bees needed for research trial

    Correct. Now is usually the time honey is taken off and Autumn strips put in, I would like bees from hives BEFORE this Autumn treatment happens. We would like one sample per beekeeper. Thats 300 bees from one hive. I can send you the container and a return courier bag for you to collect and send back
  15. Working Hard or Hardly Working ?

    Plant and Food Research employees waiting patiently for Dr Mark Goodwin to wrap up some media filming so they can get down to the hard work of beekeeping in the summertime!