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The brand Xentari is the most readily available in smaller quantities (meaning non-industrial agriculture sized quantities).

Here's two sources: http://www.forestrydistributing.com/en/xentari-df-biological-insecticide-omri-listed-valent
https://www.amazon.com/Xentari-XenT...e=UTF8&qid=1519997132&sr=8-1&keywords=xentari

Note that Bt is a biological agent (meaning live critters), and is definitely subject to getting old (dead) and no longer working. Pay attention to product expiration dates. More on that here: http://www.beesource.com/forums/showthread.php?330234-Xentari-BT-Old-Stock
 

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Discussion Starter #3
Well there seems to be an on going issue with product expiration dates which also seems to be unresolved at this time. So what's one to do?
 

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The seller Forestry Distributing has never been reported here as selling expired product AFAIK. And HidHut (Amazon Marketplace) reportedly replaced any expired product that was brought to their attention.

So buy where you choose, but check the expiration date of the product you receive, and ask the seller to correct the situation if they ship expired product.
 

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Discussion Starter #5
Rader, just so I have my head on straight about this stuff, this is used on extraction comb correct? I extract the honey, spray with the bt azawai and store the supers stacked in the barn until needed next summer? So then when I pull them out to put back on the bees next season, there is still a residue of bt azawai in the comb? Which is okay, not going to effect the honey in any way, safe to use?
 

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You can buy a product B401 or Certan which is the same as bt.az and made specifically for the control of wax moth on stored drawn out frames
 
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