BEEKEEPING LEARNING CENTER > DISEASE & PEST CONTROL
miticide
latebee:
Just curious?
What do most of you use for verroa mites, and how often do you alternate your choice of them. I prefer chemicals but perhaps there are some good organic alternatives I am not aware of. :?:
Finman:
--- Quote from: latebee ---I prefer chemicals but perhaps there are some good organic alternatives I am not aware of. :?:
--- End quote ---
What you mean with organic?
Organic chemicals "Thymol pillow " is working well.
I have Elgon bees which can identify and eliminate varroa, but I do not like them because they give stings and they are not so good in honey work than Italians. It is easier to give anti varroa chemicals, because it take one minute to hadle the colony.
My bees have now apistan resistant varroas after 15 yeards handling.
Anonymous:
Here in Southwestern Pennsylvania it has been discovered that some of the mites have developed a resistance to Apistan. Penn State and the local bee inspector are now insisting that everyone use Checkmite for control of varroa mites. It's hoped that by the time that the mites develop a resistance to Checkmite the Apistan will once more be an effective treatment. I've been told that if everyone quits using the Apistan in this area that the mites will lose their resistance to it in 3 to 5 years. We're keeping our fingers crossed that this is true because sooner or later the mites will develop a resistance to the Checkmite also.
Robo:
I decided to use oxalic acid this year after not having consistent results with FGMO. Seems it has worked well in Europe for many years.
Finman:
--- Quote from: Robo ---I decided to use oxalic acid this year after not having consistent results with FGMO. Seems it has worked well in Europe for many years.
--- End quote ---
In Finland we use oxalic acid, formic acid and thymol. All work well.
Somethimes acid handling fails. My friend handled his hives this spring and about half of larvas died. Colonies suffered a lot of this and they developed very slowly.
In Finland mites arrived from Russia 25 years ago. I found mites in my hive first 1982.
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