You must take care of dog poop?

[keannu]

Seeing this sign, what warning can you make?
"You must take care of dog poop" or "dog poo"?
What's the difference between poop and poo? and can you use this for this sign?

[SoothingDave]

There is no need to use such language. Simpy state that owners must clean up after their dogs. People understand what it means.

[keannu]

There is no need to use such language. Simpy state that owners must clean up after their dogs. People understand what it means.

Okay, I got it, but for extra, I just want to know what the difference is between poop and poo is. Are they all the same?

[SoothingDave]

"Poo" is simply a shortened version of the word "poop." They mean the same thing.

[Raymott]

"Poo" is simply a shortened version of the word "poop." They mean the same thing.

'Poo' is more polite in AusE, I would hazard to opine.
But different families use different words with their children, and the word you grew up wth as a child is probably going to sound less offensive than another term.