permaculture

[Jason Gerhardt <jasongerhardt@gmail.com>]

Sam,
Wire worms can be a fairly common problem for potatoes following sod or
grass.  I discovered this when I was diagnosing the numerous needle-like
holes running through all my spuds the first year I sheet mulched a meadow
area a few years back.  They only inffected 30% or so of the tubers, which
was acceptable for home use, but would be troublesome for market production.
 Slugs can also be a common problem of potatoes in sheet mulch.  The
solution is simple however, plant them 2-4 inches into the native soil under
the sheet mulch and they will be protected.  Soggy ground is a whole other
beast for root crops as David accurately described.
Jason