For the past two years, the city has been trying to get an exploding feral pig problem under control at Hoomaluhia Botanical Park in Kaneohe.

Park users said they see feral pigs of all sizes, sometimes in groups of six.

Some said the problem was worse before the city began trapping two years ago. But it has not gone away.

"Just lately this past month in the afternoons, I have seen pigs about three or four times," said Daniel Smith.

City parks director Gary Cabato said the trapping is necessary to protect the public, his staff and the plants.

Cabato pointed out the fresh damage pigs created just this week.

"You can see where it starts. There is the trail that they follow and it leads to the area where it is all rooted," Cabato said.

Last week, staff snapped pictures of three large pigs including a boar.

The city has renewed a contract with the U.S. Agriculture Department to help with the problem.

Cabato said 225 pigs have been caught so far.