The Dusk Pustules (ムラサキタワワ) are a purple grapes in Pikmin 3. They are found in bunches of 20, and must be individually plucked, exactly like the Dawn Pustules. If all grapes are collected, they will yield one full cup of juice. There are three bunches in the game, one in the Garden of Hope, one in the Distant Tundra, and one in the Twilight River.