Oh darn, another great theory shot down in flames. How about crumbling up a Mosquito Dunk instead, and distributing the crumbs in your broms?
I'd never put Malathion in there, though. Birds drink the water from my broms, and that stuff is poison. Truth be told I wouldn't use Malathion anywhere in my garden for that reason. Haven't bought the stuff in 30 years.
