nematodes was Edible Bulbs - Allium
J. Agoston (Mon, 07 Nov 2011 08:50:22 PST)

Peter,

The place I worked we didn't control nematodes at all. Because the water
was 20-30 cm under soil level and we gave a lot of manure in spring plants
looked well, only if we dig them up was the root knots visible.

Janos