Posted: 30/08/2016 at 16:49
Er, now this is just a personal opinion, but I would not bother putting Provado on the garden soil as such. It does have a bad effect on bees and is absorbed into plant tissue so that the bees take in the poison when they collect pollen and or nectar.
I have found that vine weevil grubs do far less damage in the garden than they do in pots. they tend to eat in straight lines in the soil rather than going round and round as they do in a pot.
Rarely have found a completely rootless plant in the garden only pot grown ones.
I only use Provado on plants which have no flowers on and are not likely to flower until the following season when hopefully the poison has dissipated.