Yep we've experienced this too - my wife was doing some work in the backyard garden and all of a sudden around 3pm:
http://forum.calgarypuck.com/showthr...=90041&page=26
All of a sudden this afternoon, thousands of flying ants have swarmed our home garden.
I read they will not harm the plants etc; but extremely annoying that we can't go into the backyard or deck.
Any help someone could suggest to get rid of them faster?