Around the entrance to my back door and kitchen window there seem to be a lot of house flies around on the foliage of plants, lettuce leaves. I cannot find any reason why they would land on plants as well as hang around this area. I can't find any dead animal carcass etc or smell anything. I want to deter them as I hate them coming in the house, especially as the neighbors have piles of dog c**p in their garden which they could have also landed on.
Any theories ?
Any theories ?
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