Can you tell me what is wrong with my morning glories?

Question

I don’t know what to do for these. I have never grown them, but this has happened like overnight.

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Answer 1

This is damage by some type of sucking pests; could be aphids or a number of other beetles.

You can treat with Neem Oil.

https://www.gardeningknowhow.com/ornamental/vines/morning-glory/pests-of-morning-glory.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm