Sorry not strictly a gardening question but we are plagued by horrible flies, the big buzzy kind. Our garden is walled & the neighbours side is full of a thick ivy & they seem to be attracted to it. In the wet weather it got bad, there are also loads of snails in the ivy coming over the wall & lots got squashed on the path & were covered in flies. Now it has dried up the flies are still here, all slugs & snails have been cleared up but we have wheelie bins by our shed & are on fortnightly collections and there are loads round there now. We have had lots of flies before but nothing on this scale. Last year we bought a fly trap that you hung up & it tempted the flies in & then they were stuck inside. It was successful but dd's hated the sight of the buzzing & dead flies in it. Any other suggestion splease?