Talk:Japanese beetle/Archive 1

Untitled
Does anyone know of any natural predators to the jb? I've got Justin beiber 's in my garden and have been researching organic ways to control them for a month now to little avail...

(answered in article now) Courtland 20:54, July 12, 2005 (UTC)

Beetle bag
Do you think it appropriate to add a picture of a standard japanese beetle trap and information on the pheromone bait?

Courtland 20:54, July 12, 2005 (UTC)


 * Yes, I was wondering where the bag picture was myself. --Descendall 04:46, 14 November 2006 (UTC)

Beetle bags
There's a lot on controversy about those bags, actually... most entomologists now say they end up attracting beetles from a large area, and they tend to feed on what's nearby before going for the pheromone bait.


 * Actually, the USDA Animal and Plant Health Inspection Service 'Managing the Japanese Beetle' reference doesn't say that the beetle bags don't work, but that they shouldn't be too close to the plants to be protected. The instructions on the bag I bought said the same thing...keep it 10 ft away, on the upwind side. And the USDA ref says 'Traps are most effective when many of them are spread over an entire community', which is certainly true. It is _very_ satisfying to have the traps 'eat' the beetles instead of the beetles eating my newly planted linden tree. Should cut down on lawn damage later too. PBarak 23:33, 17 July 2006 (UTC)

What's all this rubbish about them flying into walls, banging their little heads and dropping into bags? Somebody MUST be taking the mickey!82.71.15.212 (talk) 18:00, 9 February 2008 (UTC)

Horrible english?
Does this line make sense to anyone:

"These are spiney, and thus intended to ward off predators, but create an impression."

Stuph 17:37, 9 July 2006 (UTC)

I can understand what they mean but surley it should read something like - "Their spines are intended to ward off predators." I am not sure about the create a impression part - perhaps it could mention that they are impressive looking or somehthing? - That is still subjective.

Amraham2000

Does anyone know the Japanese common name for the beetle?
 * My Japanese informant says that they are called 'small golden bug', pretty much as the link to the Japanese term in the markup of the article indicates.PBarak 22:07, 18 July 2007 (UTC) [pls sign your posts]
 * Thanks for the answer, which I still can't find the link for in the article, probably because I'm an idiot, as you clearly imply in your response. 208.229.218.102 19:44, 2 August 2007 (UTC)!]
 * The markup of the article includes マメコガネ, the Japanese common name, as a link to the Japanese article on the same subject. Sorry if my tone, self-deprecating since clearly I don't read or speak Japanese, caught you off-guard.PBarak 03:52, 3 August 2007 (UTC)

Out of date image
The map of the range of the infestation is outdated. I lived in NW Arkansas last summer and they were everywhere. [128.187.0.164, 14:19, 31 Aug 2006 --added manually by wikipedian below. Please sign entries with 4 tildes.]


 * The USDA map is undated, but I did locate a 2005 distribution map showing an infestation in NW Arkansas. See: http://ceris.purdue.edu/napis/pests/jb/imap/jb2005.html . The source of data for the map is NAPIS, which is public domain, but the map itself is probably not. I have contacted the Center for Environmental and Regulatory Information Systems for permission to use image in wikipedia. PBarak 12:48, 1 September 2006 (UTC)


 * The Beetles can also be found in parts of California. Theshibboleth 15:40, 8 April 2007 (UTC)


 * don't know if the map is out of date or just plain inaccurate. For example, the 2005 and 2006 maps at ceris.purdue.edu (see above) show no JB in Wisconsin, yet I trapped buckets of them last summer in Dane County WI (southcentral Wisconsin) and had JB damage the yr before too. Also, Calif in the 2005 purdue map shows JB 'not established', which is different in some way than 'not found.' btw, I never got a reply from ceris.purdue.edu about permission to use their 2005 map in wikipedia.PBarak 17:12, 8 April 2007 (UTC)


 * in Utah, Utah County (particularly Provo and Orem cities in Utah County) are also fighting a JB infestation. —Preceding unsigned comment added by 204.113.19.8 (talk) 15:11, 11 February 2008 (UTC)


 * Theshibboleth, many Californians erroneously refer to harmless figeater beetles as Japanese beetles. What you see are probably figeater beetles. They like to eat fruit (not just figs, but also peaches, apricots, sometimes oranges, etc.) but don't really cause any damage. Cie&#39;th (talk) 08:16, 23 December 2010 (UTC)


 * Ah! Thank you for that correction.  I'm one of those Californians who'd been told they were Japanese beetles and was perpetuating this mistake.  Very glad to learn these metallic green beauties (found a dead one on my porch this evening) are actually a non-harmful native species.  --Dan Harkless (talk) 06:19, 13 July 2019 (UTC)

WP:Not a manual
the control section is dangerously close to violating this policy, imho.Toyokuni3 (talk) 05:47, 3 July 2008 (UTC)

Deliberate introduction
i can't substantiate this, but when i was a kid, and they were a major problem on the raspberries in new jersey, i was told that they had been introduced into the u.s. deliberately in the early 20th century. apparently, so the story went, by someone who found them aestheticly pleasing. they are beautifully coloured.Toyokuni3 (talk) 15:27, 3 July 2008 (UTC)

List of genera
There seems to be a temptation for editors to insert into the list popular names of plants. My speculation is that they've had to deal with an infestation, or are dealing with one, search the list, don't recognize the name of the plant that's infested, and add it. This may have caused the redundancy in the list, such as Blackberries (including at least one specific cultivar) to be added to the list, in spite of the presence of the genus to which they belong (Rubus). Someone has provided, parenthetically, the popular names for Tilia in the English-speaking world. I've added a couple while weeding out some redundancies. I feel it would be beneficial to include popular names of plants in these genera to make the list more useful, and the avoid redundancy. Lovibond (talk) 14:10, 16 September 2008 (UTC)


 * Many of the genera seems to be wrong anyway. If you go to, many of the plants listed as resistant are listed as ones they feed on.  I suspect someone has gotten these lists mixed up.  —Preceding unsigned comment added by 216.96.15.7 (talk) 21:15, 11 July 2009 (UTC)

Name Change, Redirect
It is my opinion this article needs to be renamed under scientific binomial nomenclature, and "Japanese Beetle" should be redirected to it.

Scientific articles should be listed under the only taxonomically accepted identification (even though the taxon of a particular organism might itself be a subject of fierce controvesy), not notoriously colloquial, controversial, or uncommon "common" names. In the case of the Japanese beetle, the common name reflects the species epithet, but this is not always the case with arthropods, and in the interest of taxonomic consistency, this mistake common to Wikipedia articles must be changed.

I'm not sure of the proper method for accomplishing this change, could someone please explain that to us? Nickrz (talk) 17:23, 2 March 2009 (UTC)

North American Bias?
It seems that this article defines the Japanese beetle primarily as an invasive species in America. I feel that it should look more or less like other articles on insect species, with a more general description of the organism. A section devoted to discussing its status as an invasive species in North America, as well as methods of control etc. can then be included. Otherwise this article stands out very much biased toward the North American view of the beetle as an invasive species. — Preceding unsigned comment added by 174.109.103.207 (talk) 05:57, 13 July 2012 (UTC)

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