The Division 2 leaders maintained their supremacy over their neighbours with a comfortable nine-point success at Healy Park to extend their unbeaten league run.
Sean Cavanagh and Aidan McCrory bagged the goals, with Ronan O’Neill and Richie Donnelly sharing a ten-point haul.
“It was a big win and two league points, that was the most important thing. It has no bearing on what went before and it will have no bearing on what is coming later,” said Harte.
“It is a stand-alone game, we wanted the two points, we have got the two points and we are very happy with that.”
Tyrone could have been even more emphatic winners had their finishing been more polished, with 11 second-half wides causing concern to the manager.
“We were comfortable in several points of it, but again, it doesn’t take a genius to know that we were wayward with our finishing, especially in the second half.”
Derry were 0-4 to 0-2 ahead by the 14th minute, after James Kielt, Emmet Bradley, Ciaran McFaul and full-back James Kielt had all hit the target.
But Tyrone soon began to capitalise on goalkeeper Eoin McNicholl’s difficulties in finding his own players from kick-outs, and Ronan O’Neill knocked over a handful of frees.
The Red Hand running game was also hurting Derry, despite the heavy underfoot conditions, and Sean Cavanagh and Peter Harte moved them 0-7 to 0-4 ahead.
McNicholl denied Barry Tierney with a fine save, and the visitors trimmed the deficit to a single point through Kielt, but Richie Donnelly and Kieran McGeary both contributed fine points for a 0-10 to 0-6 Tyrone lead at the interval. O’Neill couldn’t miss from frees, and the dash of Tiernan McCann from deep set up Cavanagh for a brilliant 50th-minute goal and a six-point advantage.
The introduction of Chrissy Bradley gave Derry some much-needed invention, and he also knocked over a couple of points, but Tyrone were able to avail of greater freshness off the bench, Conor Meyler getting a quality score.
Colm Cavanagh’s effectiveness as sweeper was another stumbling block for an ailing Derry side, who had McKaigue sent off on a second booking late on, before corner-back Aidan McCrory fired in a rare goal in stoppage time.
S Cavanagh (1-1); A McCrory (1-0); R O’Neill (0-6, 5 frees); R Donnelly (0-4); K McGeary (0-2); P Harte, C Meyler (0-1 each)
J Kielt (0-3, 2 frees); C Bradley (1f), R Bell (2f) (0-2 each); D Heavron, C McKaigue, C McFaul, E McGuckin, E Bradley (0-1 each).
N Morgan, A McCrory, R McNamee, C McCarron, B Tierney, R Brennan, T McCann, C Cavanagh, M Donnelly, K McGeary, P Harte, R Donnelly, C McAliskey, S Cavanagh, R O’Neill.
C Meyler for Brennan (h-t), J Munroe for Tierney (48), M Bradley for McGeary (48), D McCurry for McAliskey (62), J McMahon for McNamee (65), C McCann for Harte (69).
E McNicholl, O Duffy, C McKaigue, K McKaigue, G McKinless, B Rogers, M Craig, N Holly, E Bradley, D Heavron, C McFaul, SL McGoldrick, R Bell, E McGuckin, J Kielt.
R Ferris for Craig (30), C Bradley for Bell (44), C McAtamney for E Bradley (52), C O’Boyle for Kielt (55), S Heavron for K McKaigue (59, BC), B Heron for McGuckin (65)
D Codrick (Meath).