.BEE-L posting 001627 reported that:-

     "  USDA DISCOVERS NEW CONTROL FOR FOULBROOD
            Recently  a  new chemical has been  identified  that  controls
       American  Foulbrood  (AFB) Disease according to an article  by  Dr.
       Shimanuki in the October American Bee Journal.   It is  interesting
       to  note that the discovery was based on the  relationship  between
       chalkbrood  and AFB.   In studies conducted in the 60's,  70's  and
       80's  by  the  USDA Beltsville Bee Lab  they noticed  that  as  the
       incidence  of  chalkbrood  increased  the  incidence  of   European
       Foulbrood decreased.
            Later,  scientists isolated a substance from  chalkbrood  that
       inhibited  the  growth  of both  American  and  European  Foulbrood
       bacteria  in laboratory studies.   A chemist at the lab  identified
       the active ingredient as linoleic acid.   Field tests are now being
       conducted to determine the best way to treat colonies of bees."

What was the outcome of these field tests? Does anyone know? I have seen nothing reported in either the scientific literature or beekeeping press.
                      Peter Detchon, [log in to unmask]