A Dusk Ball is a somewhat different Poké Ball that makes it easier to catch wild Pokémon at night or in dark places like caves. The Dusk Ball has a 3 times catch rate multiplier at night, but an ultraball has a 2 times catch rate all times of day.
To craft a Dusk Ball, you must have a Dusk Ball Lid, a Button, and an Iron Base.
To craft a Dusk Ball Lid, you'll need 2 green cooked Apricorns and 1 black cooked Apricorn. Place the 3 cooked Apricorns in a row horizontally in a crafting bench, with the black one in the middle, obtain the disc, and then use the anvil to make it into the Dusk Ball Lid.