Coqui frogs and difficult homeowner

We have an island wide problem with coqui frogs. Within our subdivision we have been very successful at keeping them out of the properties especially since everyone agrees that they are unwanted and each homeowner has taken the responsibility for eradication when necessary. Except one homeowner. They don't live here, they live in Alaska, they have been huge PIAs over any and every issue that comes up. Two coquis have been identified as being within the dense foliage they have planted around their home, we have a couple of homeowners who are competent at identifying their sounds and approximate location, one of them is quite competent at locating them and removing them. If left to their own devices, the coqui multiplies to an uncontrollable problem. This is what has happened over much of the island.

We communicated with the homeowner to let them know of the problem and suggested the name of a professional coqui eradication company they can contact. Since these people have been so horribly negative to everyone in our subdivision, no one wants to go onto their property without written permission from the HO. BTW, location and eradication can only take place in the dark. We received an e-mail this morning indicating they feel they have no coqui on their lot, they have routine checks for coqui (which is impossible since such checks have to be at night), and they expressly forbid anyone from going on their property in search of the offending critters (we did not suggest that, we suggested they contact the professional). What alternative do we have in this situation? We don't want to make it a legal case, and without them doing something, the coquis ill likely become the source of an uncontrollable problem.

Thanks for the article, most of what's in it though is already well known. Our problem is that the owner refuses to believe they could possibly have a couple of coquis on their property that need to be removed, they live in Alaska so they are not disturbed by the noise and they have quite specifically stated that no one is to go onto their property in search of the coqui. The last line of that article is intriguing though, but I'm having difficulty finding the law that actually says this: "This year, the counties got another tool. A new law that lets eradication teams enter private property if owners aren't able or willing to be get rid of the pests themselves.

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If I can find that law, we might have a means of going on the property to find the little buggers. These people are so paranoid they have CTV cameras all over their property and have called the police in the past from Alaska just because someone walked across their driveway. Coquis can only be found at night when they chirp, they are about the size of a dime, so it's not easy. It also doesn't take long to have an uncontrolled infestation.

The only law I found when researched is this: https://codes.findlaw.com/hi/division-1-government/hi-rev-st-sect-194-2.html

Potentially according to the law your local government should help in the situation for the “invasive species”. I did see a video which stated that there was a law; however, it did not give a link to the statute. Hope this helps ...

as per: http://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/coqui/

If you see this species, call 643-PEST