Kumara prices are sitting at low levels not seen for nearly a decade.
Warm, dry conditions led to this year's crop being 35 per cent higher than last season - about 25,000 tonnes have been harvested.
Despite a spike in sales during lockdown there is still plenty in storage which is keeping the price low for consumers at between $2.50 and $3.50 a kilo.
Delta Produce group in Dargaville is the country's largest kumara producer, general manager Lochie Wilson said prices haven't been this low in nine years.