Questions & answers about wasp nests
Helen asked:
Hi, at the beginning of April a wasp was stuck in my bathroom light fitting. We killed it and didn't think anything of it (presume it was a queen hibernating in the loft). Then about 3 weeks ago a wasp was flying in the bathroom (window had been closed). We killed that and then an hour later one crawled out of an extractor fan (when I was cleaning it) and immediately died on the tiles below. I have sprayed with wasp spray inside the fan and the bathroom for a week and found nothing else. It's been 3 weeks since and we've had nothing in the house and I can't see any around my guttering and roof (and believe me I've obsessively looked). It's now the beginning of June so if I had a nest surely it would be obvious? I do have a fear of wasps and I'm wondering whether I'm paranoid or whether I should still be worried I have the beginnings of a nest.
Paul Sweet replied:
Hi Helen, this year is a bit tricky as everything is late due to the weather being so bad during early spring. Keep an eye on the extractor vent outside. It is a favourite location for wasps to nest in. If there is a start of a nest there it won’t be long before you start to see activity. It could of just been a couple of queens that were searching for potential nest sites that made their way all the way through. Just monitor it for the next couple of weeks. Regards Paul Sweet
Helen replied:
Thanks I wasn't expecting such a quick response! Yes I've been checking the vent outside and not seen a single thing. I'm wondering because the vent needed cleaning out and the wasp was half dead whether it could have hibernated in there. I'll definitely keep checking though.
Bev asked:
I had a wasp nest outside my flat window treated about a week ago and it seemed to have been treated successfully but yet tonight I found a wasp again in my kitchen having flown (as they did before) the extraction fan. Does the nest have to be retreated.
Paul Sweet replied:
Hi Bev, who was it that treated your nest?
Jason Blackburn asked:
We had 3 nests destroyed in the loft of our bungalow last year. There's a general problem with wasps in this area. It's only April now and already we can see large solitary wasps making their way under the roof tiles by the eaves in various places. I've tried peppermint oil to deter them but they don't seem to care. Are these queen wasps going into the loft to build new nests? Is there anything I can do?
Paul Sweet replied:
Hi Jason, it is that time of year I am afraid. Queen wasps have been and still are emerging from hibernation. Some are already starting to nest and others are still looking for suitable nesting sites. Apart from killing each individual queen that you see, there is not much that can be done to stop them. I advise that you keep an eye on things, pay particular notice around June. By then there should be enough activity from new nests that they will be obvious and you can then take action to have the nests treated. Regards Paul
Jason Blackburn replied:
Thanks. Appreciate the quick response. I've ordered some aerosol foggers to release in the loft so hopefully that will keep things at bay if I use them regularly? And I've just covered my pond with insect netting as there were hundreds of wasps and hornets arriving all through the summer last year for a drink from it.... Fingers crossed :-)