Since it is possible to capture a unharmed Pokemon with just a Poke Ball from the Items menu in battle, I recommend bringing the Pokemon's HP down by attacking it. When its HP is down to yellow or red, tap on the Items menu, then tap on Pokeballs to select the kind of Poke Ball you want to use. (The lower its HP, the better the chances of it being caught.) When you throw the Poke Ball, wait for the ball to shake 3 times, then you'll hear a click when you are successful.
he's a starter Pokemon. you can not catch starter Pokemon in the wild.
It is not possible to catch a wild Turtwig on Pokemon Diamond. It is generally impossible to find and catch Starter Pokemon in the wild. This was a mechanic designed to encourage player interaction for trading.
No you can't catch a Tepig in the wild. You have to choose it as a as a starter pokemon.
no
The starter Pokemon are never encountered as wild Pokemon.
you catch it with a poke ball
you cant evolve a wild Pokemon in Pokemon platinum you either have to catch the wild Pokemon and then evolve him/her or kill the wild Pokemon.
No.
no
catch it in the wild
Charizard isn't wild
you cannot catch a Pokemon that is already owned by another trainer. you can only catch wild ones.