In Pokémon Pearl, you can find Ditto at Route 218
you can't catch a ditto on Pokemon pearl or dimond but you can migrate from fire red or emerald
you have to migrate
You need a pokeradar and it will be in route 218
der ditto you find it on route 218
Ditto can be found in both Diamond and Pearl on route 218 using the Poke radar. Ditto is very useful in breeding Pokemon for specific traits. Especially if find an male or female is difficult.
use a poke 'radar in route '218'
there pretty rare but you can find it with pokeradar on route 218
route 218 they are rare and you need the national dex
After having the national pokedex, go to route 218 and there you can find ditto. use your poke radar to find it easily.
you can find cheats for it at gamespot.com or supercheats.com.
In the grass out side canalave city using a poke' radar
you can catch dittos in Pokemon diamond and pearl with poke radar in route 218 but its pretty hard to catch them + find them. :)