Greg Elmassian said:
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I’ve heard all kinds of things, this thread encouraged me to research and find out what happens.
Greg
That is very dangerous, all that extra information can lead to “overload”. From what I understand a situation best avoided.
Despite what others may say, there are no side effects other than the extra time spent reading. 
Years ago. Many years ago, I was house sitting in the early spring. I noticed wasps coming and going from a crack in a timber above the deck. “I saw some wasp spray,” I thought.
Yes, a can of wasp spray, the kind that shoots a stream like 50 ft. I took it out to the deck and pointed it, and the stream shot straight into the hole.
Thousands of wasps came boiling out, and soon the deck was littered all around with squirming, angry, dying wasps, and I found myself thinking shoes might not have been a bad idea.
Today there is no activity visible in the burrow. Tonight after sundown I’ll bomb the entry with the spray insecticide then tomorrow night then I’ll cover the opening with DE.
Vic Smith said:
Today there is no activity visible in the burrow. Tonight after sundown I’ll bomb the entry with the spray insecticide then tomorrow night then I’ll cover the opening with DE.
Anything worth doing is worth overdoing, right, Vic?
Tom, you are lucky. When I sprayed them burrowing bees or wasps or whatever with spray, it just really ticked them off.
Steve, but of course. If you go into battle with just enough force to win, you will loose. You go to battle with all you have, and only when the last of the enemy is laying on the ground, dead, do you declare victory.
I think that’s called the “Powell Doctrine,” after General Powell.
well, Vic, one thing for sure - none of the still permitted chemicals will do the trick.
the survivors of your onslaught will make new nests somewhere nearby.
you won a battle, not the war.
since Folidol ( = good old DDT) gets more and more expensive herabouts, we started to experiment.
best way to kill insects is fire in the hole.
be it hornets, termites or ants, it is always the same:
pour a generous quantity of gas fuel into the hole. don’t be shy, use a quart or even more, if you suspect a large tunnel system.
wait two or three minutes, then (from some paces afar) throw a burning paperball onto the entrance.
not ownly may you admire a nice fireball, but if you look quick enough, you can ubicate the seconary entrances by secondary fireballs.
and don’t be afraid about your plants. what does not get roasted instantly, will not be harmed. the gas will explode, not seep into the earth.
if your neighbours start talking about strange fireballs in their gardens, you know, it was a big nest.
(from personal experience, take my advise, that one should have a close look for secondary entrances at the place, where one plans to stand, when igniting the gas. a “Marylin Monroe” air gust from below comes very unexpected in the field or in the garden)
if done right, we have to redo about one nest out of ten.
in the eternal war aginst the insects, man has to either become a criminal (thanks to greenp**s and similar, or he has to take out a credit to pay specialists, who will use the chemicals he may not buy, or he has to prepare for a very long campain.
Your are right Steve, I was 75% right, glass is usually about 75% silica.
I used glass as an example that people would identify with as having characteristics that could be sharp and cut.
Of course, to be completely accurate I was 25% wrong too ha ha!
Greg
I’m pretty confident I nailed the little bastards. The beauty of the Borat is that they don’t react to it, they ignore it like dust, and track it all down into the hive. I figured out the reason the DE wasn’t working the way I hopped was that they were simply packing the stuff like wet stucco in their walls. I wasn’t until the Borat took effect and they would stagger around the entry, and thru the still powdered DE that the DE started to take effect. Between the two that seams to have crippled the hive, and now with the spray hopefully they are done with.
Put a fork in it and call it done. Zero activities noted, buried over the entry with DE tonight. Whew glad that’s over.
Anyone else gets a nest and cannot do the pyroclastic options because we’re in the city, here’s my suggestions. All after the hive has gone in for the night.
First night, spread diatomatious earth around the entry nice and thick, if you are not attacked, spread some Boric Acid powder in the entry tunnel. If they come out and try or kill you, do this on the second night.
Continue to spread additional layer of BA into the tunnel entry, make sure they can still get in and out so they can track the stuff inside.
Once activity has diminished, then spray the commercial spray down the hole. Give it a day.
Cover the hole.
Or, if it’s available, do the same thing with Powdered Sevin, then forget about it…