Farm Contractor & Large Scale Farmer
    Twitter LinkedIn
    • FREE Email Newsletters
    • About Us
    • Advertise
    • Subscribe
    • Contact Us
    Twitter LinkedIn
    Podcast
    Farm Contractor & Large Scale Farmer
    • News
      • Arable & Agronomy
      • Dealership News
      • Environmental Land Management Scheme/Policy
      • Event News
      • Health & Safety
      • Machinery
      • People
      • World News
    • Farm Machinery
      • Amenity & Maintenance
      • Cultivations
      • Drilling
      • Grassland Equipment
      • Harvesting
      • Muck & Slurry
      • Sprayers
      • Telehandlers
      • Tractors
      • Tractor of the Year
      • Tyres & Tracks
      • Whatever happened to?
    • Precision Farming
    • Markets & Policy
    • Profiles
      • National Arable and Grassland Awards
      • Company Profiles
      • Reader Profiles
    • Livestock
      • Beef
      • Dairy
      • Sheep
    • Magazines
      1. July 2025 issue
      2. June 2025 issue
      3. Cereals event guide 2025
      4. May 2025 issue
      5. April 2025 issue
      6. March 2025 issue
      7. 2025 Tyre Developments supplement
      8. February 2025 issue
      9. National Arable and Grassland Awards supplement
      10. January 2025 issue
      11. December 2024 issue
      12. November 2024 issue
      13. October 2024 issue
      14. September 2024 issue
      15. August 2024 Issue
      16. 2024 Drills and Seeds supplement
      17. July 2024 Issue
      18. Cereals Supplement
      19. June 2024 Issue
      20. May 2024 Issue
      21. April 2024 Issue
      22. Tyres and Tracks Supplement
      23. March 2024 Issue
      24. National Arable & Grassland Award – Meet the Finalists
      25. February 2024 Issue
      26. January 2024 Issue
      27. December 2023
      28. Agritechnica Preview Supplement
      29. November 2023
      30. October 2023
      Featured

      July 2025 issue available now

      By Matthew TiltJuly 9, 2025
      Recent

      July 2025 issue available now

      July 9, 2025

      Cereals event guide 2025 available now

      June 20, 2025

      June 2025 issue available now

      June 2, 2025
    • Events
    • Podcast
    Farm Contractor & Large Scale Farmer
    Arable & Agronomy

    Unsettled weather brings higher risk of late season disease

    Matthew TiltBy Matthew TiltJune 9, 20223 Mins Read
    Facebook Twitter LinkedIn Email
    Brown Rust1

    Hutchinsons is warning that early developing winter wheat crops may require a late ear spray this season due to late attacks of rust and sooty moulds. Yellow rust has been found in varieties with high resistance to the disease, indicating a new race, while brown rust may occur in warm conditions and control of sooty mould is particularly important in milling wheat.

    “Although most crops are having their T3 this week many crops of winter wheat are well ahead of their normal growth stage this season meaning that, if there is sufficient moisture, there may be an extended period after their earlier T3 fungicide application before harvest,” said Dr David Ellerton, technical director at Hutchinsons.

    He added that weather conditions may allow late season diseases to develop, particularly if wet weather continues after the T3 ear spray. “Septoria may also build if there is significant rainfall. In addition, yellow rust is widely reported including varieties such as KWS Extase which until now have been highly resistant to the disease with a rating of 8.”

    Should the weather turn warm, this could also cause brown rust to develop in varieties such as Crusoe. “However, once flowering is complete only very limited, if any, control of Fusarium and Microdochium may be achieved.

    Dave Ellerton
    Dr David Ellerton

    “Where sooty moulds are developing an application of a strobilurin such as fluoxastrobin or azoxystrobin should be made as soon as possible after the disease is seen or as a protectant on milling varieties if wet weather is forecast.

    “Strobilurins will also help the crop to retain green leaf area as well as withstanding stress conditions although it should be remembered that only two strobilurins are allowed per crop. For yellow or brown rust, products containing tebuconazole or metconazole should be applied which will give rapid knockdown while strobilurins will give extra persistence,” he said.

    “Prothioconazole will help on yellow rust and mildew and may give extra persistence against the late development of Septoria tritici.

    “As for multi sites, folpet can be used only up to GS 59, sulphur up to GS 61 and mancozeb up to GS 65. Trials work has also shown a benefit of adding Wetcit into ear sprays for disease reduction and it may also help reduce aphids, preferably in combination with an insecticide where aphid numbers are significant.”

    Dr Ellerton concluded that growers should check the latest time of application for their chosen products.

    Tweet
    Share
    Share
    Pin
    Share. Facebook Twitter LinkedIn Email
    Previous ArticleNew farming conference to help the industry face major changes
    Next Article Grimme and Haith reveal optical sorting solution
    Matthew Tilt
    • Twitter
    • LinkedIn

    Machinery editor for Farm Contractor & Large Scale Farmer. Matt has worked as an agricultural machinery journalist for five years, following time spent in his family’s Worcestershire contracting business. When he’s not driving or writing about the latest farm equipment, he can be found in his local cinema, or with his headphones in, reading a good book.

    Read Similar Stories

    Tools to tackle blackgrass at Hutchinsons demonstration day

    July 1, 2025

    Agrovista acquires Zantra Holdings Ltd

    June 30, 2025

    British Sugar announces partnership on pollinator monitoring project

    June 25, 2025
    Most Read Stories

    High-quality bales and reliability key to baler

    July 13, 2025

    Polaris’ latest line-up of off-road vehicles put to the test

    July 12, 2025

    Polish factory key part of Joskin business

    July 11, 2025
    Farm Contractor & Large Scale Farmer

    The UK's leading agricultural machinery journal

    Twitter LinkedIn
    © 2024 MA Agriculture Ltd, a Mark Allen Group company

    Privacy Policy | Cookies Policy | Terms & Conditions

    • Farmers Weekly
    • AA Farmer
    • Poultry News
    • Pig World

    Type above and press Enter to search. Press Esc to cancel.