Poison-type moves are super effective against Fairy- and Grass-type Pokémon, while Poison-type Pokémon are weak to Ground- and Psychic-type moves). Here is a summary of the weaknesses and strengths of Poison-type Pokémon:

Weaknesses:

• Ground-type moves: These are super effective against Poison-type Pokémon).
• Psychic-type moves: These are also super effective against Poison-type Pokémon).

Strengths:

• Grass-type Pokémon: Poison-type moves are super effective against Grass-type Pokémon).
• Fairy-type Pokémon: Poison-type moves are super effective against Fairy-type Pokémon).
• Bug-type Pokémon: Poison-type moves are not very effective against Bug-type Pokémon.
• Steel-type Pokémon: Poison-type moves are not very effective against Steel-type Pokémon.
• Poison-type moves: Poison-type Pokémon are resistant to Poison-type moves.

In summary, Poison-type Pokémon are weak to Ground- and Psychic-type moves, and their moves are super effective against Grass- and Fairy-type Pokémon.