We have a similar invasive worm in Scotland and elsewhere in Europe: New Zealand Flatworm and Australian Flatworm. I've lost count of the number of NZ flatworms

We have a similar invasive worm in Scotland and elsewhere in Europe: New Zealand Flatworm and Australian Flatworm. I've lost count of the number of NZ flatworms that I've killed in salty water over the past few months. I'm losing hope of removing them from our small market garden. There are far fewer earthworms in the patches the flatworm flourished before I found them. I am very interested how organic growers in NZ deal with them. If they're a problem in their native regions.