Concerned Brisbane coach Ivan Henjak wants match officials to crack down on what he feels are illegal tactics being used to ground high flying Bronco Israel Folau.

The 21 year-old was subjected to some questionable tactics several times during Sunday's tense 10-6 NRL win over St George Illawarra with opposition players not only running him off the ball but also impeding his efforts to get to bombs.

"Just adjudicate the bloody rules," steamed Henjak with Folau's second try from a Peter Wallace kick shrouded in controversy after he shoved Dragons halfback Ben Hornby out of his road.

While Hornby and his teammates launched a verbal on-field protest, video referee Paul Simpkins ruled Folau was entitled to maintain his line after Hornby had tried to run him off his path.

"You're not allowed to change your line to run someone off the ball are you?," queried Henjak.

"Of course they got it right.

"He (Folau) should have got a penalty a few other times when they impeded his progress outside of the rules."

Henjak is anxious to ensure rival players aren't given a free crack at Folau in the coming weeks as the race to the finals heats up.

Meanwhile Folau revealed after his match-turning two try effort he had urged skipper Darren Lockyer to get the ball into his hands earlier.

The champion five-eighth obliged with a flat, bullet-like pass in the 30th minute straight to the young centre.

Folau then did his part, beating Hornby, Brett Morris, Matt Cooper and Darius Boyd to the tryline.

"All week I'd been talking to Locky about getting a bit of early ball. He got it to me and I was lucky enough to get that try," Folau said.

Henjak was under no illusions about Folau's importance to his team's finals aspirations.

"Izzy's been good all year. I think he's really matured too," said Henjak.

"He understands his responsibilities, he's played in a lot of big matches.

"He's around a lot of young guys, and while he's only young himself, he's knows he is more experienced and that he has to step up."

Henjak said he wasn't thinking much about Folau's impending departure next year to play AFL.

"It will probably sink in when we get to the end and he's got to go," he said.

"He's a real strike weapon for us. He's scored a lot of tries and when we need one, he can pull one out.

"We're going to miss that but hopefully Hodgo (Justin Hodges) be back then."

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