Originally Posted by Silk
I have a German wasp nest in my cavity wall...brick house so no way to get in there. It's spring and getting warm, the paper wasps are out and about, but the Germans are still asleep. Not looking forward to them being out, I can only spray them out side the nest. They ignored my wasp trap last autumn when they started the nest, this new information and a better trap might work better in spring.
A very effective method of removal is a dust insecticide that is very docile and blowing it into their entrance with a duster. They don't die instantly but rather slowly which is good because they tend to enter their nest and spread the dust and kill it slowly. It is s dust form of what is cat and dog flea collars.