Larsen bemoaned the issue after his side squandered numerous chances in a 1-1 draw with Polokwane City in KwaMashu on Wednesday night.
Abafana Bes'thende drew first blood, as Nkanyiso Mngwengwe headed home a corner from Danny Venter barely seven minutes in at Princess Magogo Stadium.
However, Rodney Ramagalela equalised shortly before the break, as he blasted home past his former side after being teed up by strike partner Mohammed Anas, who nearly snatched all of the spoils when he clipped the upright at the death.
Arrows would have been especially disappointed had they come away empty-handed, as Limbikani Mzava had a penalty saved by Zimbabwean goalkeeper George Chigova early on, while Wayde Jooste and Knox Mutizwa were both denied by the woodwork.
"'Micho' [Milutin Sredojevic] and Rhulani [Mokwena] were crying about the same thing at Pirates. [Giovanni] Solinas is also crying about it at Chiefs. Benni [McCarthy] is crying about it at Cape Town City," Larsen told reporters after the league game.
"You know we need to be ruthless in front of goal. If you want to win football matches, when you are dominating like we were in the first 30 minutes, you've really got to put the games to bed, and we didn't do that today.
"We really dominated the game, created chance after chance. Okay we missed the penalty but straight after that we scored the goal. But still chances like that you have got to put them away if you want to win football matches, and we were really poor in front of goals today."
Larsen, who picked the same side that recently drew with the Citizens, added: "We are just happy that we didn't lose the game because you know when you have one of those nights and you are missing so many chances, you just wait until the end, and they clipped the post.
"Before that we had four, five chances. Jooste hit the post twice, Mutizwa hit the upright and I can go on and on.
"You think it's one of those nights where you concede one like it almost happened at the end of the game."
Arrows, in ninth spot on the table with five points from four games, will resume their Absa Premiership campaign after the FIFA break against Highlands Park on September 16 at Makhulong Stadium.