dude...
WTF? (http://www.cnn.com/2004/TECH/science/04/27/bc.giantsnails.ap/index.html)

(from 3) in seven years there were more than 18,000 of them.

That doesn't seem like a very high reproductive rate...

(yes, I know it is enough to be a pest, but I expected more)

I still suggest that reproduction rate can't be taken with a pinch of salt.
(or dealt with just a pinch)

Those are so cool, too bad the giant snails are illegal.

I live right around the Milwaukee area. I'm gonna throw a bucket of salt on one if i see one.