Also known as: Diltz, Deiltz
Originated as a chance seedling in 1850 in the orchard of Judge Mooney of Oswego County, New York. It was introduced into Niagara County, New York by a Dr. Mann and later named for him by the Western New York State Horticultural Society. Fruit medium to large with greenish to deep yellow skin and sometimes lightly covered with patches of russet. Flesh is yellow, firm, and juicy. Ripens late fall and keeps into the early spring.