I've had this question on my mind for a long time and decided to look for related articles when i found this. There are so many products on the market to kill ants, i'm wondering if I'm a negligent gardener as i never bother to try and mess with the ants in my garden.
i have one patch of grass, where the previous owners had put a lot of sand for a gazebo, which has a lot of ants and is frequently looking more poorly then the low-lying, sitting on clay grass areas. Now, I imagine the good drainange dries the sandy spot out too fast hence the dying off in hot weather, or do the ants living there have something to do with it too?
I would appreciate your input so that I can put the question to rest!
Ants prefer sand because it makes their life easier for building tunnels and nests. I don't think the ants are to blame for the poor-looking grass; more likely, it's the sand that doesn't seem to support most common turfgrass.
I believe if the ants aren't a concern to children and pets, probably should leave them to it. If you really want to get rid of them, sprinkle flour over the area. It's not toxic, but they carry it back to the nest where, when eaten, it does not digest and they die.
This doesn't guarantee that other colonies won't come to your sandy area, but it would give you the chance to amend the soil and plant grass.