European Commission proposal to replace the current potato cyst nematodes (PCN) control directive (69/465/EEC) [electronic resource].
Scotland.Environment and Rural Affairs Department.Plants, Horticulture and Potatoes.
Edinburgh : Scottish Executive,
2005.
"Scottish Executive Environmental and Rural Affairs Department Plants, Horticulture and Potatoes" -- at head of cover.
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Title from PDF title page.
Potatoes
Nematodes