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I don't know how is in your country, but here in Italy beekeepers are afraid to use oxalic acid instead apibioxal... this because a lot of beekeeping associations/organisations did them some "terroristic" informations... Even if pure oxalic acid use is illegal (but I feed some personal doubts...

@Plenty of honey I have an answer by the Varrox producer! (Andermatt-BIO AG). It says that keep the varrox in the hive for 2 min over the connection, is necessary to complete the sublimation of the last little quantitative of oxalic and as we said, for avoid the fog leak. Thanks for answers...

Tnx SDM! Out of any kind of study, in my direct experience, I can only confirm the conclusions... With sublimation colonies loses less bees... My idea is to create a varrox thermoregulation that gives a sublimator like this: youtu.be/7q14qXNr3M0 Preserves time, oxalic effects and batteries.

Thanks Richard. I will try anyway with thermoregulation. In any cases, I'm sure that the oxalic sublimates without degradation. The 2 bad point that burn time are the refresh of plate and the long insertion after disconnection. In other pubblications (Nanetti et al. - 2015 - stranova), they draw...

Thanks! So, you think that the important thing is closing the entrance in order to reduce the dispersion of the fog, out of the hive. I aggree. I always used the covering on the entrance for 10 or more minutes. I also think that is a good tool, but too expensive in terms of time. My question...

Hello guys, I would like to ask you why is necessary keep Varrox vaporizer inside the hive for 2 minutes over the battery disconnection. Do you think that this step is necessary to give heat to colony and increase the bees movement during treatment or you think is necessary for make a complete...

(sorry for some grammatical errors in my previous post)... The compensation it's around 100-120 euros (the middle price of a honeybee nuc, without equipment as hives, loss of honey, etc...). We have to note that in the past controls of 2014, in the hives where SHB was found, the infestation was...

Hi all, I'm new in this forum. I read your tread about SHB in the south of my country . As Madasafish and mbc say , the control of SHB is a little bit muddler . It Seems That the investigation was stopped from January till 2 weeks ago ... Because with an official communication due 2 weeks ago...

Hello everyone! I'm Christian a beekeeper from North Italy. I arrive here after a my friend (boca) suggestion. I wish you all the best! A good beekeeping season for you and your bees!!! I hope to be useful for this community!