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Fumagilin-B shelf life?

6656 Views 9 Replies 7 Participants Last post by  wildbranch2007
I know Fumagilin-B is light sensitive but what's it's shelf-life if still in the orginal container? I've got a couple 5- frame nucs that are sharing a deep that are exibiting symptoms. I normally treat as needed so I don't want to buy one of the larger containers if it goes bad within a year. Thanks!
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