Answer to my question, yes, France has a locust problem too.
http://www.freerepublic.com/focus/f-news/1445536/posts
There is a perception that due to global warming, many types of insects are moving northward on a worldwide scale, including locust hordes. That is why I posted the article. Without getting into any theoretical discussion of global warming and its effects, this news item may offer some limited empirical evidence, which, when combined with other pieces, such as locusts swarming northward in the Mediterranean, may come to be useful.