If I am not breeding queens at the time then this is OK.
I believe I read in an Entomology journal of research performed in the
early 90's showing problems with coumophous and queen laying.

thop Bradley

Blane White wrote:

> An article in the American Bee Journal Feb. 1999 reported that
> Apistan treatment did have negative effects on drones reared while
> treatment was in the hive.

> conclusion of the article was to not have the strips in the colony
> during drone production.
>
> blane