Beware effect of Glyphosate on seed potatoes, levy body warns

The widely used weedkiller Glyphosate is "incredibly damaging" to seed potatoes and can cause "horrendous problems" with germination and emergence in the daughter crop, even in minuscule doses, AHDB Potatoes (formerly Potato Council) has warned.

Image: Axel Hartmann
Image: Axel Hartmann

Contamination can remain unnoticed until the seed crop has been replanted, and can cause lengthy and costly commercial disputes, it added.

AHDB Potatoes communications officer Sophie Lock said: "The most common cause of Glyphosate contamination is spray drift, usually from a neighbouring oilseed rape or cereal receiving a pre-harvest spray.

"Typical spray drift effects can reduce emergence to just 25-30 per cent of normal, and even as low as 5 per cent."

AHDB Potatoes has published a free leaflet, "Advice on the safe use of Glyphosate", aimed at growers, neighbours and landlords, with advice on correct spraying and encouraging dialogue.


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