It makes sense that bees might perceive a handful of grit or gravel as "streaker bees" but I would never throw anything at a swarm. Too rude.
PLB
***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html