IIRC, the last time I had wasps entering into a gap in the bricks near the
ground, I tried the usual wasp / bee / yellowjacket stuff - all to no avail. I
called the extension service for help, and they knew what to get.
They recommended 'Sevin' brand insect killer [to be applied with great care to
not poison myself!]. It worked great.
I think one of the keys was to puff the powder into the hole where they enter
during the evening when things were dormant or slow. Making sure to spray it
where they would track it into the nest would be best. I think it took a few
applications, several days apart for us to no longer see anybody flying around,
and then sealed up the hole in the brickwork.
If you have a local extension service, they might have a suggestion. We used to
have them in every county in Michigan when I was growing up, but now I think it
is consolidated. I wound up calling the one at Michigan State University. I've
moved out of state, and have no idea who I would call now - but donâ??t have
the need yet [fingers crossed].
----------------
All the best,
Al Fuller
-----Original Message-----
From: Shop-talk <shop-talk-bounces@autox.team.net> On Behalf Of Neil Sherry
Sent: Wednesday, August 9, 2023 3:23 AM
To: shop-talk@autox.team.net
Subject: Re: [Shop-talk] Eradicating yellowjackets in a stone wall?
I had a load of wasps arriving to set up home, accessing via a gap in
brickwork. I used the vac for about 40 minutes to suck them up before they
entered the crack, as well as nabbing any that came back out (was a bit like
ghost busting). I had the vac in wet mode (so no filter or bag) with some water
in the bottom - reasoning that they would eventually drop and drown -
especially with the odd shake and swish. When they had stopped arriving I
caulked up the crack and then listened for buzzing from the vac - there was
none. When I plucked up courage to look inside, it looks like they had all
succumbed to the sharp corner where the hose enters the machine - judging by
the spatters there!
Neil
On 07/08/2023 04:12, Jimmie Mayfield wrote:
> I recall seeing a video where someone was trying to eradicate a
> hard-to-get-to hornet nest in a roof where they wound up leaving a
> running shopvac at the entrance to capture the hornets as they
> entered/left. If you later suck up some powdered pesticide like Sevin
> or diatomaceous earth, it ought to kill them while trapped in the vacuum.
>
>
>
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