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Getting rid of cluster files

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  • Mar 14th, 2018 9:44 pm
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[OP]
Jr. Member
May 15, 2008
132 posts
7 upvotes

Getting rid of cluster files

Anyone had a problem with cluster flies in their home and have any ideas on eliminating them?

I live in a 3 year old townhouse in Toronto/gta and have had several cluster flies during the summer and most recently, in early March.

I suspect the flies are coming out from the ductwork.

Any insight in this would be appreciated.

Thanks
9 replies
Deal Expert
Aug 2, 2004
28597 posts
3936 upvotes
East Gwillimbury
I have a huge problem. I guess you’re south facing as well? They seem to be hibernating in my attic and coming out of my bathroom exhaust vent.

My only solution is to use a vacuum to suck them up.
Deal Addict
May 24, 2004
1864 posts
144 upvotes
Gee wrote:
Mar 13th, 2018 8:03 am
I have a huge problem. I guess you’re south facing as well? They seem to be hibernating in my attic and coming out of my bathroom exhaust vent.

My only solution is to use a vacuum to suck them up.
Seal up your bathroom vent. There shouldn't be any leak between the fan and the exit shroud.

You may have an infestation, perhaps go up in the attic with a cordless vacuum to get most of it out. Finish it off with a spray such as this https://www.homedepot.com/p/Bayer-Advan ... /205534814. Although banned in Canada, the chemical permethrin is very effective on bugs. Lasts quite a while (months) and only require periodic reapplication.

I've seen low concentration permethrin sprays at places like Home Depot. It's usually sold as a perimeter spray. When spraying any type of insecticide especially in closed environments such attics, wear a respirator.
Deal Expert
Aug 2, 2004
28597 posts
3936 upvotes
East Gwillimbury
baymoe wrote:
Mar 13th, 2018 10:11 am
Seal up your bathroom vent. There shouldn't be any leak between the fan and the exit shroud.
I am guessing that is the entry point.

Cluster flies only appear in the spring in fall. I think the best prevention is over the summer since they breed in your lawn near earth worm burrows
Newbie
May 15, 2015
70 posts
12 upvotes
GTA
I had an insane problem last summer. I'm seeing the random one now that it's getting a bit warmer. I have pest control company coming to spray the whole exterior of the house to kill them. They said they use permethrin. I also bought this on my last visit to the US for additional support if needed https://www.amazon.com/CSI-CYPER-WP-1-L ... =cyper+wsp
Member
User avatar
Feb 26, 2011
396 posts
332 upvotes
Calgary
Am I the only one wondering why someone needed help getting rid of a cluster of files?

Image
Deal Fanatic
Oct 6, 2007
6112 posts
2233 upvotes
Kootenays
I'm doing the annual purge of my office desk today and came here looking for advice. :(

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