To Dr. Rodriquez and all,
 
Just finished looking at my hives at my house (have 3 out yards).  First
let me say that I saw no mites.  (6 hives)  Today was the third time that I
have used the MO.  It is not at the recommended intervals, but it is the
best I can do at this time.  The bees are doing good with still some nice
patches of brood (Southern, Maryland, USA) Stores are light, so will have
to feed this fall.
 
Tried a few tests:  Cover a bee with MO and it dies in less than 30
seconds.
                            Put one drop on the abdomen and it is dead in
less than 60.
 
Watched the entrances for awhile:
                             Bees brought out a few dead bees that I could
see had gotten too much oil.  Maybe 3 to 6 on the landing boards.  One or
two being carried off
from different hives.
 
Tried putting vasoline on the edges of the supers to stop them from
sticking together.
Thought that maybe the vasoline may have some effect on the mites too since
it is made from the same material.  I believe that I saw it posted before
that the vasoline may also help stop the rotting on the edges of the supers
--- Hope it is a good thing.
 
billy bee