Bird cherry tree ermine moths larvae

This is amazing... could you please explain how they get like that?

My goodness this is great

ESSEX has been spooked by a plague of web-spinning caterpillars.

silken threads draped over trees, plants and gravestones.
It has been caused by an invasion of thousands of bird cherry ermine moth caterpillars who have created a vast web-like nest.
see (1066 sun) previous picture
truly amazing....................

GREAT PICTURES................

Is this a link you ve given have you url page please.There is a plague in europe too of catterpillers, not sure which one, which are destroy crops I read on the web news.

http://www.dailymail.co.uk/news/article-1283749/Not-just-creepy--cemetery-gone-crawly-caterpillar-invasion.html

this is a link...........

Yes I ve just got it now thanks

But I don't get it.... how long did it take for all these to get like that? Looks like the end of the WORLD to me...