one of my farmers i shoot for has a huge wasp nest in his loft and has had a pest controller round and said it is best to leave them until January to get the queen .
is this correct or is he talking bollocks ?
https://www.solwayfeeders.com/vermin-control/spring-traps/solway-mk4-spring-trap-p1905-c193/
New http://www.perdixwildlifesupplies.co.uk/product-category/wildlife-management/traps/ ones