Is there anywhere I can find precise instructions on how to do these techniques or are there any video clips on youtube I can watch.
"sprinkling" and "trickling" don't seem precise enough to me
thanks
SusieB,
Oxalic acid, whether trickled or evaporated, is not usually applicable at this time of the year, unless you have just collected a swarm (unlikely) or done any other swarm technique (also unlikely). At this time of the year, providing the ambient temperature remains above 15C, a thymol based application of, a say, Apiguard is appropriate. Apiguard takes 4 weeks or so for the full treatment. The point is that the first application lasts 2 weeks and deals with varroa on the bees before the mites can move from the bees and enter brood cells. The second stage deals with varroa that were already in capped cells waiting for bees to emerge. Having got that done, you then wait until about Xmas to do the oxalic acid trickling treatment at a rate of 5ml
per seam of bees in the brood box(es). For a novice it is best to get a ready prepared mixture, of the correct strength, and applicator syringe. If I have misunderstood your query please ignore this response.