The Tigers take their 2-0 record to Hawaii for the Hilo Holiday Invitational where they will meet Weber State on Friday and face either Wisconsin or Hawaii on Saturday.
The game was the season opener for Southern, who began their second era under head coach Ben Jobe.
Collis Temple turned in his first double-double of the season, leading the Tigers with 20 points and 14 rebounds. Off the bench, Antonio Hudson scored 19 points and Thomas Davis had 14. Ronald Dupree started and scored 13 while Brad Bridgewater logged a career high with 10 points against the Jaguars.
"Offensively, we're fine," said LSU head coach John Brady. "Defensively, on guarding the dribble-drive and screening the board when the ball goes to the goal…it only takes three or four of those letdowns to get a team that's down back into the game."
The top scorer and rebounder for Southern came from its bench, as Tim Johnson totaled 24 points and eight boards. Starting swing player Brian John contributed 18 points.
Southern held a brief 4-3 lead in the opening moments of the game, but LSU scored seven unanswered points to take a 10-4 lead at the first official timeout.
The Tigers built a first half lead of 16 points when Bridgewater dumped in a short jumper off a spin move for a 34-18 lead.
Hudson banked a shot off the glass with 4:14 to go before the break to make the score 39-24. He would provide the next field goal for the Tigers in the finals seconds of the half, but Southern scored only five points during the LSU dry spell, giving the Tigers a 42-29 lead at halftime.
The drought continued for Southern in the second half, as the Jaguars managed just 6 points in the opening eight minutes. LSU had no such problems, building its largest advantage, 65-33, on two free throws from Torris Bright.
Although Bright finished with just 5 points, he led the Tigers with 8 assists and 3 steals.
The Tigers also got a strong bench performance from Xavier Whipple, who added 9 points to the Tigers' total.
"It's a 30-point win and you'd think we should be giddy," said Brady, "but you've got to look at what's ahead for us in Hawaii."The Tigers were scheduled to leave Baton Rouge at 3:30 Tuesday morning to catch a flight out of New Orleans for their tournament in Hawaii.