[Kiwi Will]

It's late summer here in Christchurch New Zealand and the hive is working well. It's a reasonably strong & has been reasonably productive this year (to date)
I have found that german wasps (They're yellow & black stripped wasps I know as German wasp) have started entering a hive which I have here at home in the garden.
They seem to be entering every 2 or 3 minutes so it's not many at present but maybe it's a start of what I don't want.
I have been sitting watching and they seem to hover around the hive for a bit then get down low in the flight path of the incoming bees and just stroll on in there with them.
I have tried reducing the hives entrance by 50% to make it more busy for them and hopefully will get the message from the "guards" that their presents is not wanted but... it's as if they are cousie-bro's and just wander on in.

Has anybody any suggestions what might deter them ?
I do have plans to move the hive in a week or two and maybe that might do the trick, assuming they don't reside there over night as well.

Would appreciate your thoughts.
Cheers

 

[Kiwi Will]

Thanks for the suggestion. Its appreciated but I don't understand what a #8 hardware cloth is.
Is it a wire mesh or something like a fly screen type mesh one would find on doors and windows or is it a piece of cloth, as in fabric?
I imagine it's something we might have over here in New Zealand but we may call it something else.
What sort of size is the opening for the bees to access through this? Is it a substantially reduced size from the normal full width of the hive or just couple of inches wide in opening/access size?
Thanks again
Cheers
Will