>Has anyone used the BT  *Bacillus thuringiensis*  B401 from Vita Ltd and
sold by Bee Works in Canada for the prevention of wax moths in stored comb.
 Very little found in the archives and nothing recent.

The *Bacillus thuringiensis *sub-species *alzawai** * is the type effective
against wax moths.  I have found references to the Vita B401 also known as
Certan and a reference to XenTari

http://www.valent.com/agriculture/products/xentari/index.cfm

http://www.vita-europe.com/products/b401/

The combs are sprayed with a solution of the Bt for storage.

1.  Is there any contamination of honey with the Bt spores?

2.  Are there any other down side to using Bt var. aizawai except maybe
cost?  It seems that this maybe a better than using para dichlorobenzene
(PDB, paramoth).

3.  Why isn't this registered in the US?

Dennis
Western New York, USA

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