BOISE, Idaho — September has been a month to forget for the Louisiana-Lafayette football team.

The Ragin’ Cajuns’ nonconference struggles continued Saturday night in Idaho as host Boise State rolled to a 34-9 victory at Albertsons Stadium.

Boise tailback Jay Ajayi racked up 150 rushing yards and scored three touchdowns as Boise State (3-1) dominated from the outset on its famed blue turf.

The Broncos outgained the Ragin’ Cajuns 499-241 in total offense, outrushed them 262-67 and held UL-Lafayette to 2-of-15 on third-down conversions.

Sophomore tailback Elijah McGuire was a bright spot for the Cajuns, compiling 106 yards receiving on 10 catches, 31 rushing yards and the team’s only touchdown. UL-Lafayette wraps up its nonconference schedule with a 1-3 record and now has lost three consecutive games for the first time since 2010.

The Cajuns have a bye next week before hosting Georgia State in its Sun Belt opener Oct. 4.

Boise State seized command early, forcing a three-and-out on the game’s opening drive and then marching 70 yards in 12 plays to take a 7-0 lead on Ajayi’s 2-yard run.

The Cajuns drove to the BSU 37 on their second possession but were turned away on downs. BSU quarterback Grant Hedrick found receiver Matt Miller for a 57-yard gain on the next play, and Ajayi scored two plays later for a 14-0 lead that would never be threatened.

UL-Lafayette had a golden opportunity to get in the end zone late in the first quarter but could not capitalize. A heads-up play by kicker Hunter Stover turned a botched 38-yard field goal attempt into a first-and-goal at the Boise State 7. But the next three plays netted just two yards total, and the Cajuns had to settle for a 22-yard chip-shot by Stover.

Boise State tacked on another touchdown in the second quarter — Ajayi’s third on a 17-yard burst — and took a 21-3 lead into halftime. Ajayi had 120 yards rushing — and 150 total — in the first half alone. Hedrick, who completed his first 15 passes, threw for 189 first-half yards as the Broncos outgained the Cajuns 273-128.

UL-Lafayette continued to struggle offensively. Senior quarterback Terrance Broadway was pressured into check-downs and throwaways on most of his drop backs, and the Cajuns receiving corps — minus leading playmaker Jamal Robinson, who missed his second consecutive game with an injury — struggled to get open.

The mismatch carried over into the second half as Boise State tacked on a 40-yard field goal by Dan Goodale and a 5-yard TD run by Devan Demas to extend the lead to 31-3. The Broncos softened up defensively as the game turned to the fourth quarter, and Broadway took advantage by engineering an 11-play, 80 yard drive for the first Cajuns’ touchdown. McGuire scored it, scampering in from the 7. The extra point was blocked.

Top performers for the Ragin’ Cajuns included senior safety Trevence Patt, who racked up 14 tackles. Christian Ringo, Marquis White and Dominique Tovell added sacks.

Broadway finished 20-of-38 for 160 yards with one interception, a tip-toe grab by BSU corner Donte Deayon.

Hedrick was 24-of-31 for 237 yards for Boise State, while Miller caught five passes for 107 yards.