Good Morning Marion, what do you do with the fermented Garlic, spray it or place it around in bowls for them to be attracted to and collect them that way, I used to collect them with my rubber gloves on and they are so slimy, even with rubber gloves on, I do swim in the sea and snorkel but not too much here, love warm water swimming, hope the lady is ok with her back, weather here quite Breezy all towels on the Airer blew over this Morning,  good job ground was dry, Happy Swim just wish you had your boat, have a great day xx