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Tried bees wax / linseed oil mix?

Consider giving Woodland Trust a hand with their climate project? https://naturescalendar.woodlandtrust.org.uk/?_gl=1*1brhxj9*_ga*MTU4MzE4MTU0Mi4xNjc3MjE5MDI2*_ga_YYKVQEPV0X*MTY3NzIxOTAyNi4xLjAuMTY3NzIxOTAzMy41My4wLjA

That's what I thought, until this year when I vaped multiple times around the shortest day. Mite drop varied dramatically between colonies following the first treatment: substantial in some, little in others. Initially I attributed this to the relative efficacy of the range of miticides tested...

Same as the rest of us, perhaps ... difficulty getting out of bed in winter? ;-)

My best ever solution: surplus-to-requirements coarse filter pads that come with the replaceable dust bags for Miele (bagged) vacuum cleaners. Wax goes through fast and product is clean yellow. I suspect these are amenable to cleaning / upcycling but I haven't tried that yet. Clearly one...

I'm sorry to say that I tend to eyeball it according to the wood I'm treating - less oil in younger wood.

Perhaps stating the obvious but.... when servicing naked cedar boxes - supers in winter and broods during the spring rotation - I dissolve wax in hot linseed oil and then apply it hot to the weathered exteriors. Excellent results in old, porous wood, perhaps not worth the effort with new / less...

How does that work then - are you saying you spin heather honey or do you perhaps scrape comb off the plastic and then press?

That's very insightful information, thank you very much.

This autumn, I used three different miticides (MAQS, Apilife Var and Apiguard) on representative hives (2 per miticides) in each of 4 apiaries. All of the treatments yielded the desired reduction in mite populations with the effect of MAQS being relatively dramatic in the short term. However...

PS: under-dosing is more likely to lead to resistance in mites.

To close out my contribution to this discussion of OAV.. .. Firstly, it never hurts to remind ourselves of the science and for this I find Randy Oliver's site (and linked PPT) useful: https://scientificbeekeeping.com/oxalic-acid-heat-vaporization-and-other-methods-part-2-of-2-parts/ Of...

Sorry.. VAPING - spellchecker at work again!

Interesting discussion. Following local mentors, I started out gaping from beneath mesh floor but switched to entrance after noticing that a significant proportion of the vapour condenses immediately on the mesh floor, ultimately corroding it and significantly reducing the dose reaching the...

https://en.m.wikipedia.org/wiki/Stoma https://simple.m.wikipedia.org/wiki/Stomata

Unlikely..... stomata are for gas exchange

Unless a Varroa analogue of this comes along: https://www.cdc.gov/mosquitoes/mosquito-control/community/emerging-methods/index.html

So.. here's the story. Some weeks back, a huge numbers of bees approaching one very strong colony was plausibly interpreted as possible robbing, in part on the strength of the leg posture in flight of the incoming bees. Subsequently, a comparative "shut-in" study, benchmarked against a hive in...