'Vine dresser' in the Bible

and he said unto the vine-dresser, Lo, three years I come seeking fruit in this fig-tree, and do not find, cut it off, why also the ground doth it render useless?

"At harvest-time he sent a slave to the vine-dressers, to ask them to give him a share of the crop; but the vine-dresser beat him and sent him away empty-handed.