The wet weather over the last two years has led to an increase in pig breeding and the pest has caused excessive damage to the environment, cane crops and cattle pastures, according to ABC.

The aerial shoot, funded both by the Federal Government and landholders, was initially planned for two days but hours in the air have now almost doubled.

Manager of Tedlands Station, Dougal McDougal, says the shoot has been very effective.

"We've flown 17 hours and we've clocked 207 kills and also five wild dogs, and from a grazing point of view that's very good as well," he said.

"That's across the whole catchment.

"It's hard to narrow it down to how many actual flying hours have been on this actual property.

"They've been given an open licence where to go and where to move onto other landholdings."