Catalans opened the scoring as McIlorum burrowed over after Hull KR, with out the injured Mikey Lewis, made an error to present the hosts possession.
However the lead lasted solely 5 minutes because the guests responded strongly when Burgess spun out of a sort out to attain within the nook, with Ben Reynolds’ conversion levelling issues at 6-6.
The hosts regained the benefit on 18 minutes with a slick transfer which noticed Davies acquire a looping move earlier than accelerating into area and feeding Matt Ikuvalu to cross the whitewash.
Davies then took centre stage with a superb one-handed end, acrobatically leaping into the nook to dot down with defenders dashing throughout to sort out him.
With the boldness flowing, Catalans started to dominate and Jordan Dezaria’s shut vary rating was adopted by one other glorious group transfer which was completed off by Theo Fages to offer the hosts a commanding 26-6 half-time lead.
The break did the Robins good and so they got here out with extra impetus within the second interval however may discover no approach by the Catalans’ resolute defence.
Hull KR had been then lowered to 12 on 56 minutes when Matty Storton was yellow-carded for a sort out which put stress on the neck of Johnstone.
The Dragons winger was in a position to keep on the pitch to attain his aspect’s sixth attempt – and the primary factors of the second half – ten minutes earlier than full-time earlier than Tariq Sims rounded off the scoring by charging down a kick and dribbling the ball over the road to dot down.
Defeat ends the Robins’ three-match profitable streak and so they keep fifth on 10 factors – 4 factors behind their opponents and new Tremendous League leaders Catalans.
Catalans: Mourgue, Davies, Romano, Ikuvalu, Johnstone, Rouge, Fages, Bousquet, McIlorum, Navarrete, Sims, McMeeken, Garcia.
Interchanges: Nikorima, Sironen, Satae, Dezaria.
Hull KR: Evalds, Burgess, Hiku, Opacic, Corridor, Reynolds, Could, Whitbread, Litten, King, Hadley, Batchelor, Minchella.
Interchanges: Parcell, Luckley, Storton, Tanginoa.