> I think that leaving a shop vac on for awhile is a much better > alternative to pesticides! Any specific reason, or just a bias against pesticides? Note that pesticides are really a problem when used incompetently -- i.e., in attempts to *eradicate* pests instead of keep them at an acceptable level. > Many years ago, a friend of mine had to remove a ground hornet nest. He > tried all of the common pesticides, as well as pouring gasoline down the > several exit holes, and setting it ablaze. Nothing much happened except > the hornets getting angrier. > > Finally, he hooked up a 35 gallon shop vac to a 30' long piece of 3" > pipe, covered all but 1 of the holes with fresh cement, and arranged the > pipe so that it was within a few inches of the last exit. He also stuck a > pound of rotenone in the shop vac. He left the vac on for 2 weeks! Couldn't you get the same effect by placing a 10 gallon clear water bottle or tank over the remaining exit? In the hot sun? Alternately, pouring a dozen or two gallons of boiling water over the nest can do the job nicely.