Adrian C wrote:
Andy Dingley wrote:
On 10 July, 14:52, "TheScullster" wrote:

I've also heard that the ant powder works well on wasps nests!

Not AFAIK at this time of year. Later on it will.

Nope, early with the ant powder is much better. The wasps are focused on
gathering food for the nest, and a nice dose of Permethrin is what's in
Nippon ant powder (and probably the others). It will kill the nest
occupants when they bring it home and feed the others.

Wasps change their diet by season and they're more "ant like" (ie
susceptible to sweet lures) in the late Summer.

Yeah, but by then ye'll have to kill each one by hoping they all crawl
through the powder left out. Larger task with more wasps. By then, ye
may have to use the foam and the deadlier alternatives aimed
specifically at nests.

Carbaryl (permethrin) powder. Works outside too, when you find the
entrance. Here they make nests in the garden and in clay banks, as well
as sometimes in houses. You're lucky, your wasps are in a place you can
get at easily to do the job yourself. Late evening when they have gone
home for the night sling a tablespoonful of the powder into the entrance
so they carry it into the nest on their feet next day. They go out,
they come home, get the powder on their feet and one by one carry it
back to the nest.

And DO get rid of them. They die off in winter, sure, but not the
queens, Next season the original queen and the young ones start up new
colonies and build up to huge numbers quickly unless weather and food
supplies are in *your* favour!

A L P

A L P