Black caterpillar with very obvious yellow spots ?
Apart from snails, these creatures are the only things i have been able to find eating away, mostly at my impatiens & coleus.
They are about 2cm long, very black and have a line of bright yellow spots the length of their body. I've not seen that many of them, but those i have, are definitely munching away!
Any ideas what this is & what i should do about them?
Thanks in advance from an appreciative beginner.