Incorrect. Home plate, first, second, and third base are all completely within fair territory as are the foul lines. In order to rule the ball foul, the ball must have:
(1) settled on foul territory between home and first base,
(2) settled on foul territory between home and third base,
(3) been touched by a player or umpire while the ball was on, or over, foul territory, or
(4) touched by any object foreign to the natural ground, such as the dugout or backstop fence, while the ball was on, or over, foul territory
(See Little League® Rule 2.00--Foul Ball).