Vine Weevil Help

[Bolshybookworm]

I have been sorting out my patio pots and found one that was absolutely full of vine weevil grubs . Does anyone know the best way to control them? I'm not keen on pesticides as we have small kids and I generally like bugs (apart from these ugly critters). Does Biological control work?

I have quite a lot of pots (to hide some godawful decking we can't afford to replace), so repotting everything is not something I have the time or money to do.

Distressed

[NanTheWiser]

There is a biological control - by nematodes - www.amazon.co.uk/Nemasys-vine-weevil-killer-standard/dp/B000VPIJ3O/ref=sr_1_4?ie=UTF8&qid=1430740108&sr=8-4&keywords=provado%20vine%20weevil%20killer%202&tag=mumsnet&ascsubtag=mnforum-21
I don't know how effective it is. The only other control is a chemical one - www.amazon.co.uk/Provado-Vine-Weevil-Killer2-Concentrate/dp/B00JBIKKFM/ref=sr_1_1?ie=UTF8&qid=1430740287&sr=8-1&keywords=provado%20vine%20weevil%20killer%202&tag=mumsnet&ascsubtag=mnforum-21, which might be more effective.