Hadn't seen any ladybirds, larvae or eggs so ended up buying some. I'm not entirely sure what's happened as there's very little difference in the aphid population on my Victoria plum or greengage. There are at least some pupae on there so it hasn't been a complete bust. I had some some by natural means on a rose and transferred a few of the larvae onto the Victoria plum as the aphid population was virtually eliminated. They were starting to look a bit frantic and I didn't want them to start eating each other out of desperation.
I’ve found quite a few, they are living in old hollow stalks, I don’t think I’ll be cutting down much this autumn.
I was trying to explain this to OH yesterday as she tore through the borders removing anything remotely brown - "well, they can pupate on the compost heap" was her response...
Posts
https://www.field-studies-council.org/shop/publications/ladybird-larvae-guide/
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.