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That is why I use the dribble in December. No brood in upstate NY. I like to use on a very cold day, 20 degrees or colder, and have never had any noticeable negative effects on bees.
Good to know Llyod, thanks.That is why I use the dribble in December. No brood in upstate NY. I like to use on a very cold day, 20 degrees or colder, and have never had any noticeable negative effects on bees.
I believe the University of Montana knows what they are talking about with such precise numbers; I’ll try and get the actual research for this. This University as you probably know is very reputable, with Dr Jerry zBromenshenk teaching part of this. I know that Rusty Burlew of Honey Bee Suite, Pat Bono of NY Bee Wellness, some of the Olivarez family have all participated in this course and have their Master Beekeeper Cert. from them. As for the Amitraz I would rather the OA than taint the comb wax in my hives. Thanks for the info though.Cloverdale I read a paper about 6 weeks ago, unfortunately I cannot remember where I read it. This paper compared dribble to vapor treatments and documented brood loss and at the end found that brood loss on the OAV compared to brood loss of the untreated control hives. So I believe that brood loss from OAV is negligeable. The responce one normally gets when refering to brood loss is normally from tests done by the dribble method. Most of acedemia have very little experience with OAV and just rattle off the so called common knowledge, besides OAV is only good for broodless bees as it kills only phoretic mites. Well well so does Amitraz only kill phoretic mites so if you would have OA crystals in the hive every 4 days it would do just as well as the amitraz based miticides
The prof is referring to a dribble study HATJINA,HARISTOS 2005I’ll try and get the actual research for this
kinda sort of?This University as you probably know is very reputable
I dont think it was significant, but if open brood wouldnt they eat it? And I havent seen that myself either but Im thinking the more vulnerable eggs/ young larva?If Vapourised Oxalic Acid does indeed kill significant amounts of brood, then I'd expect to see bees hauling out at least some advanced-stage grubs - but I have yet to see any evidence of that happening after an application.
LJ
The prof provided data from a dribble study(without telling you the method), did he send anything about OAV specifically? To Johno's point, its easy to find studies showing the brood is impacted by dribble, OAV not so muchI just dont know what to think about this. This is being taught at college level by a reputable college and Professor.
Would this be something useful the Bee Health Guru device could solve?
Alex