Just ask the folks on Kaua'i and the Big Island about bush beardgrass. The hardy invasive species has swiftly taken root there and is now growing out of control, threatening native plants and increasing the potential for brushfires.

On O'ahu, where the invasive species turned up in the lush valleys along the H-3 freeway and on the Windward side, we're well positioned to win the battle against the noxious weed. But will we?

While the state has the manpower to eradicate the beardgrass, it has been unable to gain access to sites because a few residents won't grant access or aren't home to give them the OK. Seeds from the plants on those properties, state officials say, are now spreading to the 200 other nearby homes.

Getting rid of the pesky weed isn't easy.

In fact, residents who merely cut back the weed will likely just make the plants more difficult to see and allow the seeds to spread. The grass must be carefully taken out at the root, then properly disposed of.

Property owners in the affected areas should cooperate and make every effort to help the state eradicate the grass while it's still feasible. Short of that, the Legislature can step in and classify the grass as a noxious weed, which would then give the state Department of Agriculture the power to act.

But let's not wait or let it come to that.

Cooperation from residents is the fastest and easiest way to win this battle and protect our native plants and reduce the potential for brushfires. It's the right thing to do.

For more information on how to help, contact the O'ahu Invasive Species Committee at 286-4616.