That thinking has enraged graziers on the border of the park, who say marauding wild dogs coming out of Namadgi regularly kill or mutilate their sheep.

Farmer Peter Luton, who has lost 160 sheep to dog attacks since April, says the only answer is to eradicate the entire wild dog population, calling for aerial baiting to be introduced in Namadgi, as it is done in the Kosciuszko National Park in NSW.

Mr Luton says Environment ACT is providing a "sanctuary" for the dogs in Namadgi.

"There's hundreds of dogs in there. Down at the Orroral Valley, people have seen 12, 13 dogs in a pack," he said.

"Once those dogs hit your sheep, you haven't got much of a chance. They'll destroy a mob overnight if they can."

ACT Parks Conservation and Lands is only trapping or ground baiting wild dogs on the boundary of Namadgi where it borders grazing land.

Otherwise, the dogs are left to roam the park.

Parks Conservation and Lands director Russell Watkinson said the wild dogs were generally a mix of dingo and domestic dog.

He did not regard them as feral or a bad thing for the park per se.

"In our language, the feral dogs are the escaped domestic dogs. These are wild dogs and they're living as part of the Namadgi ecosystem," he said.

"They help keep the population in balance and most of them have got quite high levels of dingo in them."

Mr Watkinson said 34 wild dogs had been baited or trapped since February.

"We certainly recognise there is a problem with wild dogs at that southern end of the Namadgi park but our advice is they're not just coming from Namadgi, they're also coming from surrounding private land," he said.

The wild dogs were trapped and then shot or killed with baits laced with 1080 poison and then buried.

The ACT was also working with the Cooma Rural Lands Protection Board on a wild dog management plan.

It was "a bit resistant" to aerial baiting.

"One, because there's the risk of non-target species such as quolls taking the bait. And two, you can often get quite a strong community reaction against widespread baiting so we much prefer targeted baiting," Mr Watkinson said.

NSW National Parks and Wildlife Service south-west slopes manager Steve Horsley said aerial baiting took place in the Kosciuszko National Park in May and October while ground baiting and trapping went year-round.

Mr Horsley said the aerial baiting extended 10km into the park at wild dog hot spots, including near Adaminaby, and did help to reduce dog numbers.

Mr Luton's family have farmed sheep at the southern border of Namadgi since the late 1880s but are feeling increasingly stressed by the wild dogs which are a modern problem.

His father Greg said the dogs "seemed to get a taste for the sheep and they come from miles".

In just the last three days, another 11 sheep had been killed and a further 11 maimed.

Mr Luton said the dogs seemed to treat killing the sheep as a sport. The sheep died a horrible death.

"They're not eating them. They'll chew them until they pull them down and then they'll move on to the next one," he said.

With the drought meaning they have already spent $30,000 on corn to feed their sheep, the wild dogs were only making the farm a more and more marginal endeavour.

"I don't know if we can put up with it for much longer," Greg Luton said.