Four o' Clocks & Japanese Beetles

I read an article on Japanese Beetles recently. Someone suggested Mirabillis jalapa, Four o' Clocks will kill the Japanese Beetles. The article was written last year and some were going to try this tactic.
Does anyone have any experience or information that Four o' Clocks work killing the horrible Japanese Beetles??

Exactly how did the article suggest you kill them with 4 o'clocks? Just having them growing in your garden wouldn't work--they might very well be toxic to JB's, but if that's the case the JB's would be very unlikely to munch on them.

It was a post written below an article on Dave's Garden. I will try to find the post.

The article was entitled "Visitors without Vistas' by Toni Leland.
The comment is found after the article.
I was hoping those that had tried this would give some feedback.

I grew a bunch of mirabilis jalapa about three feet from what was apparently (based on previous years' experience) a delectable rose. I found dead JBs on the four o'clocks, some still on the leaves, and some on the ground. And the damage to the rose was far less.

It's worth a shop because mirabilis is a piece of cake to grow. Just push the seeds into the ground and they do the work. It can be good to pull them up at the end of the season since they can grow quite large tubers that can be tough to get out after 2-3 years.

They are pretty too. If you want something a little less loud than the fuchsia ones (I love them, by the way) they also come in pinky purple (pictured), white and yellow.

I have heard that Mirabillis is aggressive. I am tempted to grow it because I had a nightmare summer last year with the JB. Wouldn't the tubers already be present by the end of the summer?
They are fragrant. My mom grew them in Okla and they were never a nusiance but I have heard they're are not "nice" where I am.
I put milky spore down last year but know that takes awhile and doesn't get rid of all of them. I also grew tomatoes which were suppose to repel them--I could see no effect.
I would think that someone would discover a predator bug or some kind of control that isn't harmful to everything else.

Bird, I wouldn't use the word aggressive. They do not creep or spread. This is the deal. The tubers are present at the end of summer, but they are small - tiny, in fact. Easy as pulling a weak weed. If you don't get them all and they overwinter, they appear quite clearly the next year, and you can pull out the excess. For a tuber to become a problem (mind you, this is my experience) it has to be in the ground 2-3 years. And then a shovel takes care of it.

I think the places that they're a problem are in warmer climates than yours. I remember planting them every year when I was growing up in Ohio and they were never a problem there.

Well, as a child, I lived in Oklahoma which I believe is zone 7. They would return in Mom's garden, but I don't remember them being a problem. My brother, who is in the top of zone 6b says he had them, and they were difficult to get rid of. I think it has to do with the loamy soil. As all plants like loamy soil--the better the more prolific--but I don't know.