CHICAGO — Brice Turang hit a two-run homer, Isaac Collins drove in two insurance runs and the Milwaukee Brewers beat the Chicago Cubs 4-1 on Thursday.Turang and Sal Frelick each had two hits as the Brewers opened a seven-game lead over Chicago in the NL Central.Milwaukee took the finale in a five-game series at Wrigley Field after the Cubs won three straight. The Brewers won Monday’s opener 7-0.Milwaukee starter Quinn Priester allowed one run on three hits in 4 1/3 innings, but fell short of winning his 11th straight decision. The right-hander issued a season-high five walks while striking out four and was relieved by Nick Mears (5-3) in the fifth.Five Brewers relievers limited Chicago to two hits. Trevor MeGill worked around a single in the ninth for his 16th save.Cubs starter Shota Imanaga (8-6) allowed two runs on three hits in seven innings, striking out five.Pete Crow-Armstrong drove in the Cubs lone run with a sacrifice fly in the fifth. Chicago failed to cash in on eight walks and left 11 men on base.Slumping Cubs All-Star slugger Kyle Tucker returned to the lineup after sitting out three games and went 0-for-4 with a walk.Turang put the Brewers ahead in the second by sending Imanaga’s 2-0 fastball to the right-field bleachers against …