Does anyone know how to get rid of the Tetranychus urticae or spider mite? They have devastated my herb pots, ate the potatoe, tomatoe and some bean plants and now they seem to be moving on to the flower department.
How can I get rid of them? I tried spraying with a mixture of garlic and dishwashing liquid but that only slowed them down.
In 3 days they were chewing happily at my plants as if nothing ever happened. Can I do anything at all?