Sorry Snoop, no offence, but its a vine weevil grub - chafer has legs at the front. Anyway, vine weevil do like heucheras, and heaven for them is a heuchera in a pot... might just be time to use a nematode treatment on all your pots Segovia - if you've got them in this one, they'll be in all the others too. Google Nemesys products... but check, because the air temperature needs to be within a certain range for the treatment to be effective. Usual application time is September.

I had the same thing happen at the weekend and agree with Bamboo that they are Vine Weevils. I re-potted all the top sections in fresh compost after checking for grubs, they will soon make new plants.

And use a non-peat compost, they seem to prefer peat based ones.

I would thoroughly wash all the roots as well,before repotting in new compost..but they are usually better planted in the ground..would that be a possibility? so far,mine haven't been affected by Vine Weevil..The darker variety you have shown,can take more sunshine than the lighter coloured ones..

Thanks for the advice.

I have three others in pots that I could re plant in the garden. Are Vine Weevils therefore only attracted to pots ?

John

No, they can infest soil around shrubs, but they prefer pots, so that's usually where the larvae will be.

They do more damage in a pot as they are confined and so they go round and round eating the roots as they go. Plus there are no predators in a pot so all the eggs hatch and begin eating. Out in the soil there are things which eat them and they tend to eat in a straight line, so do less damage.

Unfortunately Provado is available in the UK. It is evil stuff - it contains thiacloprid which kills bees. So before using it consider which you would rather have a heuchera or a bee!

I usually plunge affected plants out of their pots into a bucket of water until all the remaining grubs have drown then re-pot with fresh compost. It may take a few days but it is safer and a lot cheaper than using Provado + it works :o)

Provado Lawn Bug Killer (neonicotind) is due to have restrictions imposed from December. My point was that thiacloprid (which Provado includes in several of its products) is available in the UK as at in October 2013. Products are readily available on the shelves of GCs, DIY stores and online. I can't find anything that says thiacloprid is being banned in the UK.

I'm not an organic gardener; I probably don't recycle as much as I could; I eat red meat and I don't like an awful lot of bugs but I do worry about the state of the globe when people use inorganic chemicals to kill bugs without any thought for the rest of the food chain.

Rant over (for now)!