I had a very poor take on my last graft. There are several contributing factors but I would value comment on varroa treatment.
I was using a Cloake board. The hive had a very high varroa count (29/310) so Bayvarol was put in at the same time as setting up for the graft.
Is there evidence, or weight of opinion that the treatment will have caused such a poor take?
I was using a Cloake board. The hive had a very high varroa count (29/310) so Bayvarol was put in at the same time as setting up for the graft.
Is there evidence, or weight of opinion that the treatment will have caused such a poor take?