Blight warnings already issued


With blight warnings from AHDB, using the new Hutton Criteria, already appearing due to recent warm and humid weather, it’s vital that growers are now implementing a robust blight control programme, to stay ahead of the disease before it’s too late.

Blight pressures

Once the effects of blight are seen, it’s often too late, so planning tight spray intervals where possible to maximise the preventative properties of blight products is vital.

Be careful to take heed of warnings to protect crops as they come into full growth, especially during hot and humid weather.

Protecting your crop

It’s important to start your blight control programme as early as possible. As Valbon and ZinZan can be used as early as rosette stage for controlling blight, this offers a chance to get on early with these products.

Growers should be applying blight control products every 7 to 10 days, depending on the label, throughout the season.

Top Tips:

  • Make sure that you and your agronomist are signed up to the Hutton Criteria alert system
  • Talk to your neighbours to establish blight risk in your area
  • Dig up or kill off any rogue plants or ground keepers from last year as they can be a source of infection, which can spread to this year’s crop
  • Make sure irrigation is timed to reduce the possible impact on fungicide treatments e.g. don’t irrigate soon after application to avoid run-off
  • Monitor blight pressure in irrigated crops more frequently as a microclimate that favours blight disease development could be created

For more information on blight control contact us.