Aaron Morris wrote:

(snip)  My recollection of the recommendations for coumaphos
use is two treatments per year for small hive beetle and one treatment per
year for varroa mites IF Apistan resistence has been verified.

This may be correct.  However, the twice-yearly Coumaphos treatment was (and
is) recommended by our state apiarist, Jimmy Dunkley.  No SHB has yet been
reported in Louisiana as far as I know, but Apistan-resistant varroa seems
to be present. and possibly was the cause of our 40-percent loss rate last
fall.

Walter Weller
Wakefield, Louisiana