How do we get rid of \ control the flys in our community gardens near our pool

Every summer we get complaints from residents and guests using our community gardens and pool that there are to many flys about and it makes sunbathing a pain when all you do all day is waft the flys away.

We control the watering carefully, we fertilize grass and flowerbeds over the winter...but there are still hundreds about!!!!

Everyone must suffer with the same issues, so how do you try and control the fly population in your gardens?

We have used the red-top fly catchers in the past and that worked to some degree, but never solved the problem?

look forward to hearing your tips so that we can pass them on to our gardener and presidente

Around our urb and home we use flypots, plastic traps which come complete with a powder to which you add hot water and they attract in the flys, you can buy these online or from local DIY stores

The fly goes in and cannot get out, they work well

There is only one problem with these, they stink so they have to be placed carefully

The other option, if you are a community is to call in one of the specialised pest control companys, they will advise and can first spray to reduce the problem, they are not expensive

thanks for these two replies, the flytraps are the ones we have been using and they do have an effect if the gardener remembers to top them up, we have plastic bags in the bins around the pool and gardens and these are emptied daily, good point about the paths being washed down, ill suggest that as thats where wine and drinks can be spilt, 

food for the plants we bring over from the uk phostrogen i think so not using manure....unless the gardener has come up with his own cunning plan to help,

Owners do not walk animals through the gardens, there are a few strays about, but those are dissapearing fast as we got the police out to the people that were continually feeding them despite being asked not to.

After another ispection aroung the gardens i think we have some over watering on grass areas when people dont put the beds away and this can make the ground a bit sodden which then tends to attract the flys.... well keep looking and trying things.... 

Cheers for your time and advice

Mosquitos do not like Basil or Lavender. Surely this must also apply to thier bigger cousins?

You could try growing lots of these and some venus flytraps?

ie  they do not like the smell of the lavender and basil but the flytraps emit an odour they do like. So those that overcome the smell from the lavander & basil go for the flytraps and get eaten.