Posted: 22/11/2015 at 17:06
Out of interest I once put an adult weevil in a jar of pure bleach. It was still alive 24 hours later. Another one which would probably survive the Nuclear Holocaust, like the cockroaches.
Certainly agree about the peat based MPC used by Nurseries. They love that stuff. Non-peat with added grit is better, but still not perfect.
I was reading about a Fungal based soil additive which is supposed to be a very good control in an organic way. Very expensive and sadly only available in large quantities and once opened has a short shelf life.