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 3.5x catch rate multiplier at night.
Crafting
To craft a Dusk Ball, a Dusk Ball Lid, a Button, and an Iron Base.
To craft a Dusk Ball Lid, two green cooked Apricorns and one black cooked Apricorn are needed. Placing the three cooked Apricorns in a row horizontally in a crafting bench, with the black one in the middle, will produce three dusk ball discs, and then using an anvil will make them into Dusk Ball Lids.