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Yet more vine weevils...

Despite using nematodes last year and the bug clear ultra stuff the year before my tub is still plagued with them.
I have taken out all the plants and left them in a bucket of water.
I was very surprised to find one crawling out of a hyacinth bulb so will chuck those.
I used a mix of JI3 and compost and as I cannot get any replacement soil I wondered if removing the top 9 ins or so and spreading it out and picking out the grubs will be enough or will there be unseen eggs waiting to hatch?
I have taken out all the plants and left them in a bucket of water.
I was very surprised to find one crawling out of a hyacinth bulb so will chuck those.
I used a mix of JI3 and compost and as I cannot get any replacement soil I wondered if removing the top 9 ins or so and spreading it out and picking out the grubs will be enough or will there be unseen eggs waiting to hatch?
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I wonder if something like a brassica collar would protect a plant and stop the eggs being laid or getting into the soil when they have hatched.
Been through half a large trug of soil today and squashed a lot of weevils some had started to have legs 😝😨
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