Rovers registered their third win from as many Championship outings after leading 14-0 at half-time.
Jack Bussey led the way on the try front with a brace while other touchdowns were added by Brandon Pickersgill, Gareth Gale and Connor Jones. Craig Hall landed three conversions.
Defeat leaves the Cumbrian outfit rooted to the foot of the table, yet to get off the mark after three fixtures.
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Dewsbury Rams are up and running after three rounds, recording their first win following a breathless 12-10 home success over Sheffield Eagles. Both teams scored two tries - Brad Graham and Adam Ryder for Rams - and a conversion apiece but a penalty, steered true by Matty Beharrell proved decisive.
Rams now have two teams below them in the standings - London Broncos and basement side Workington - both on zero points.
Bulldogs trailed 6-0 at half-time but Lucas Walshaw crossed the opposition whitewash in the second half for an unconverted try that provided hope but, ultimately, failed to change the outcome.
Bulldogs are still in the thick of the play-off spots with Knights now also knocking at the door after Sunday’s success at Mount Pleasant.
Elsewhere, third-placed Barrow Raiders held off fellow northerners Newcastle Thunder 14-6, Halifax Panthers gave it a ‘real good go’ at home to table-topping Widnes Vikings before being edged out 9-8 and London Broncos were beaten 8-0 at home by Whitehaven.