Part 1:
One abiding memory of my father, is "helping" him dig spuds aged 7 to 10 or 11.
That memory is only blighted [sic], by the uder his breath mutterings of "f***ing slugs!". From memory, maybe 1/3 of the spuds we dug had slug damage. Slug pellets can deal with the surface movers; but aren't there some smaller * that move under ground and rarely come tot he surface?
Part 2:
black plastic sheet is often used to warn the soil pre-planting; and even slitted to allow the crop planted to grow through.
Question:
Would lining a (say) 300mm deep trench with (black) plastic, filling it with soil, planting the spud in that soil and the covering is with another layer of black plastic (with appropriately position slits) protect the crop from slugs?