growers-advice-fight-against-blight-potato-outgrade-hygiene
This report provides the best practice advice for potato outgrade control, which can act as a reservoir for blight infection.
The report focused on minimizing the impact of potato outgrades. This included easy access to outgrade piles away from potato crops and farm buildings, site piles on land not intended for any crop or any potato crop in the future, not to risk polluting watercourses, locate piles away from ditches and rivers or groundwater etc.
Control measures emphasised on adopting a zero tolerance approach to green foliage on outgrade piles by tackling it early; relying on a late application of glyphosate or diquat + paraquat is a high risk strategy as blight may already have spread by this point. The report also provides a strategy for the prevention of green foliage and highlight regulations for agricultural waste management in the UK.
