It was a match in which mistakes in both penalty areas proved costly for the young Rovers as they slipped to a 3-0 defeat.
The home side started the better and took the lead in the 9th minute. A long ball forward was worked to the byline before being pulled back for Greg Olley to open the scoring.
After that disappointing start Rovers saw plenty of the ball but carving out chances were was proving difficult, Modou Cham having the best one of the first half but his shot struck the post.
On the stroke of half time the Magpies netted a second as a mistake in possession from Will Butterwick allowed Callum Roberts the chance to steal in and score.
Three minutes into the second half Rovers thought they had pulled a goal back when Jack Doyle's inswinging corner found the back of the net but the officials saw an infringement in the six-yard box and the goal was chalked off.
However with Rovers pushing for a way back into the game they were once again caught with a sucker punch just past the hour mark, Liam Smith applying the finishing touch from Roberts' cutback.
To their credit the young Rovers kept going but they struggled to carve open a resolute Newcastle defence.
"It was a match in which we couldn't turn possession into chances," said coach David Lowe.
"We had a lot of the ball in the first period but we couldn't produce enough quality play to make goalscoring opportunities.
"Our play was decent between the two penalty areas but we didn't deal with their counter attacks really well which has been our achilles heel this season.
"It was pleasing with the way we kept the ball but we just lacked that creativity in the final third."
The Under-18s have just one game left this season, a yet to be scheduled match away at Norwich City.
ROVERS: Raya, Wassi, Lavelle, Butterwick, Doyle, Torres, Harris, Vicars, Cham, Anderson, Wall.