Before attempting to treat a wasp nest, wear protective clothing, including long sleeves, pants, gloves, and a veil or hat to shield your face.

We thought that would do the trick, but after he left, the activity was as busy as ever, with wasps coming and going as they pleased for days after. These can be built in soil banks below ground, in hollow trees or, worst of all, in the roof spaces and cavities of our homes.Wasps still entered my room from the brick but they were newborns on their last legs and easy to finish off with spray. Immediately I could see wasps coming out to defend but they hovered outside the brick and refused to re-enter. Wasps can be a real nuisance in and around our gardens and, of course, offer the threat of a painful sting and real danger to those people who have an allergy to the sting. The powder should be dusted liberally into the nest or in piles at the entrance, but this is best carried out in the evening or on dull days when the wasps are not so active.

In my case the constant stream of wasps into this nest was making it treacherous to negotiate some outdoor stone steps, so I felt I had to deal with the nest. We are aware that some companies such as 'Royal Mail' do not add a surcharge, but they also have a long list of prohibited items that we can not send with them.Had a huge wasps nest forming in my air brick that wasn’t visible and they were starting to enter the inside of my flat from behind a radiator! Really effective powder — they all seemed to vanish very quickly and did a far better job than a paid exterminator. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Defiantly worked, does need to be used over a few days, the powder is a little difficult to get into the entrance into the nest, you have to stand up wind or do it on a wind less day.