Talk:Horse-chestnut leaf miner

Natural Predator
Here's illustration I made today, please post it with proper english description 83.10.193.39 (talk) 10:26, 18 July 2010 (UTC)
 * Thanks for taking the photo, I've added it to the article. Smartse (talk) 12:12, 18 July 2010 (UTC)

Biological pest control
I have withdrawn the following text from this article since it based on my own observations, and acknowledge that because this is not corroborated by any scientific study, it should be replaced by a reputable source regarding the physiology of horse chesnut leaf miner:


 * "Like other moths of the Lepidoptera order, its wings are covered by minute, powdery scales that are slightly sticky to the touch. The scales are shed by the moth on contact, and can accumulate as a sticky powder like coating on the leaves and leaf stems on which it resides.


 * This coating acts as a natural barrier that protects the moth from attack by common predators such as spiders, whose webs are rendered ineffectual by sticky powder like scales. As the coating accumulates during periods of dry weather, it may also make the moth unpalatable to other predators, such as birds, enabling the population of Horse-chestnut leaf miner an to grow unchecked by Biological pest control".

Although other contributors to this article have provided suggestions why this leaf miner has spread so quickly (e.g. its short reproductive cycle, climatic change), I have not seen any explanation as to why it is not subject to Biological pest control. Intuitively, the increase in the population of the leaf miner could be expected to give rise to a corresponding increase in predators, until such time equilibrium between leaf miner and predator populations could be reached.

Clearly there is a gap in this article that should be addressed, and I hope that the conclusions drawn from my observations, even if what I have written turns out to be incorrect, start to address the issue of why the moth's physiology make it resistent to Biological pest control; I for one would be interested in finding out more. Gavin Collins 11:16, 16 April 2007 (UTC)

Spread of Cameraria ohridella across Europe
This list seems to be totally random and not based in fact or substantiated. Germany is a very large country, did it reach the south first. I would assume it is in Scotland, and why does it just stop at 2003. Please return it to the page if it can be referenced sensibly and updated. SuzanneKn (talk) 20:15, 1 July 2008 (UTC)
 * 1985 Macedonia
 * 1989 Austria
 * 1996 Germany
 * 1997 Hungary
 * 1998 Czech Republic
 * 1999 France
 * 2002 Denmark
 * 2002 Wales —Preceding unsigned comment added by 92.16.232.86 (talk) 16:37, 6 February 2011 (UTC)
 * 2002 England
 * 2003 Poland
 * 2003 Ukraine
 * 2003 Sweden

operculella epithet
User:Visor87 added a claim that the horse-chestnut leaf miner is also known as C. operculella. I've removed this claim pending some evidence. The species was described in the paper. The only species I can discover with the epithet operculella is Phthorimaea operculella, the potato tuber moth. Is this a claim of synonymy between these species? Let's see the evidence. Gdr 22:00, 23 September 2008 (UTC)

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