Never seen anything like that, Mark! But there was a period last spring when I was out late a time or two and heard that strange rustling in the leaves on the ground - loud enough that I thought it was mice- but I could never see anything (except some leaves moving) and realised it was all over the place! In daylight I could see on some beds that had a light coating of leaves, that the dried leaves had been pulled into regularly spaced little piles!
west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus http://urbanehillbillycanada.blogspot.com/
LOL! The Year of the Worm! Sounds like good rich soil and a VERY WET year! Yes, I fondly remember the spring of 2011 with its great Lake Peden. I imagine most of the worms here just plain drowned. As another point about root invasion: The tip of a root leader is like one cell thick. That can get through a real small hole. When it does, if it finds nice goodies on other side of hole, the root will grow large forcing a larger hole in order to devour nice goodies; something to consider when planning barriers in soil.
Michael PedenLake Champlain Valley, zone 4bFour and a half months frost freeSnow cover not guaranteed
Mark, I have that number of earth worms in my compost heaps! It is different species of worms in different kinds of soil. I think I have 10-12 species of worms in my garden.
Rogaland, Norway - with cool, often rainy summers (29C max) and mild, often rainy winters (180 cm/year)!
Given the general lack of enthusiasm for landscape cloth, I've decided not to use it. My thanks to everyone for the info & advice!
Philadelphia, Pennsylvania, zone 7a
Webmaster for the Delaware Valley Chapter (dvcnargs.org)