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Grass-weed control and herbicide resistance

  1. Effect of herbicide rate on black-grass populations [Video] Vijaya Bhaskar AV. (2021) 
  2. Herbicide resistance in Italian ryegrass. [Video] Vijaya Bhaskar AV. (2021) 
  3. The challenges of herbicide-resistant grass weeds. [Daily Article] Vijaya Bhaskar AV. (2021)
  4. Managing and preventing herbicide-resistant black-grass. TResearch Summer 2021 [PDF] Vijaya Bhaskar AV, Forristal D, Barth S & Hennessy M. (2021)
  5. Tackling grass weeds. Teagasc Research Impact Highlights, 2020. [PDF] Vijaya Bhaskar AV, Forristal PD, Barth S & Hennessy M. (2020)
  6. Stop the spread of grass weeds [Video] Forristal D. (2021)
  7. Black-grass – cultural control options. [Daily Articles] Collins C. (2021)
  8. Weed screen trials. [Video] Staples J. (2021)
  9. Grass weeds: preventing seed return. [Videos] Staples J. (2020)
  10. Stubble cultivations for grass-weed control [Video] Staples J. (2019)
  11. What is in your bag of seeds. Today’s Farm. [PDF] Staples J. (2020)
  12. Stopping grass weeds in their tracks. Today’s Farm. [PDF] Staples J. (2020)
  13. Wild oat control in spring cereals. [Video] Staples J. (2020)

Fact Sheets

  1. Establishing arable grass margin (and controlling sterile brome). 
  2. Beware of wild flower mixes as you might get more than you paid for
  3. Stopping the spread of grass weeds: cleaning harvest machines 
  4. Black-grass invading Ireland’s tillage fields.
  5. Nationwide grass weed survey launched
  6. Enable Conservation tillage (ECT) project featured in EU publication.
  7. Grass weed identification video launched

Farmers Journals & Magazines

  1. Growers help needed for black-grass and Italian ryegrass survey. [Irish Farmers Journal] Vijaya Bhaskar AV & Mahon J. (2022)
  2. The growing threat of Italian ryegrass. Crop Protection. [Irish Farmers Journal] Vijaya Bhaskar AV. (2022)
  3. Management of herbicide-resistant black-grass. [Irish Farmers Journal] Vijaya Bhaskar AV. (2021)
  4. The challenges of herbicide-resistant grass weeds. Crop Protection. [Irish Farmers Journal and Teagasc daily] Vijaya Bhaskar AV. (2021)
  5. Grass weed challenges increase as resistance expands. [Crops open day, Teagasc and Irish Farmers Journal] Vijaya Bhaskar AV. (2021)
  6. Herbicide resistance confirmed in wild oats. [Irish Farmers Journal] Vijaya Bhaskar AV, Forristal D, Barth S and Hennessy M. (2020)
  7. Integrated weed management to tackle grass weed problems. [Crops Open day. Teagasc and Irish Farmers Journal] Vijaya Bhaskar AV. (2019)
  8. Blackgrass – contrasting tale of farmers’ response. [Irish Farmers Journal] Hennessy M. (2021)
  9. Understanding dormancy in weeds and black-grass. [Irish Farmers Journal] Doyle A. & Robb S. (2021)
  10. Black-grass lessons from the UK. [Irish Farmers Journal] Cook S. & Mahon A. (2021)
  11. Prevent black-grass seed return. [Irish Farmers Journal] Doyle A. (2021) 
  12. Listen: the cost(s) of having black-grass. [Irish Farmers Journal] Doyle A. (2021)
  13. Spring crop planting to control black-grass. [Irish Farmers Journal] Staples J. (2021)
  14. Listen: black-grass cases more than double. [Irish Farmers Journal] Robb S. (2021)
  15. Listen: black-grass is here and it’s on the rise. [Irish Farmers Journal] Staples J. (2019)
  16. How to find out if you have resistant grass weeds. [Irish Farmers Journal] Staples J. (2019)
  17. Listen: when it comes to grass weeds, knowing your enemy is key. [Irish Farmer Journal] Robb S. (2019)
  18. Controlling grass weeds: when to hit the reset button. [Agri-land] Staples J (2021)
  19. Italian ryegrass: herbicide resistance a concern on Irish tillage farms. [Agriland] Staples J (2021)
  20. Diversifying crop rotations – the only answer to resistant grass weeds. [Agriland] Staples J (2021)
  21. Counting the cost of controlling black-grass. Today’s Farm. Staples J. (2021)
  22. Herbicide-resistant plants spreading in tillage triangle. [Farming Independent] Staples J. (2019)
  23. Forging new weapons in fight against grass weeds. [Farming Independent] Staples J. (2019)
  24. How maps in the tractor can help solve problems in the future. [Farming Independent] Hennessy M. (2019)
  25. Grass weed control and minimum tillage under investigation. [Agriland] Hennessy M. (2019)
  26. Think black-grass isn’t that a big deal? Think again. [Agriland] Staples J. (2019)
  27. Time to test for herbicide resistance. [Todays Farm] Vijaya Bhaskar AV. (2023)
  28. Herbicide Sensitivity across the spectrum of grass weeds  [Irish Farmers Journal] Vijaya Bhaskar AV. (2022)

Webinars

  1. Tillage establishment systems and grass weed, from the North East. [Video]
  2. Tillage establishment systems and grass weed, from the South. [Video]
  3. Tillage establishment systems and grass weed, from the South East. [Video]

Podcasts

Tillage Edge podcast (accessed via, https://www.teagasc.ie/crops/crops/the-tillage-edge-podcast/)

  • Black-grass: a UK expert’s view to controlling the problem
  • John Mahon’s view of conservation agriculture and grass weeds in Ireland
  • Andy Mahon on his UK 2021 harvest and prospects for 2022
  • Farmer Tom Tierney explains his direct drill system
  • Pre-emerge weed control in winter cereals
  • Machinery hygiene at harvest
  • Black-grass and no-till farmers
  • Grass weeds in non-plough systems
  • Weed control in winter cereals
  • The function and benefits of cover crops
  • Combine setup and the importance of stopping grass weed seeds spreading during harvest
  • How to deal with broad-leaf weed control and herbicide resistance issues
  • Dealing with tillage grass weeds including wild oats and black-grass
  • Weed control strategies in spring barley

Peer-Reviewed Publications

  1. Vijaya Bhaskar AV, Forristal PD, Cook SK, Staples J, Schilder D, Hennessy M & Barth S. (2021). First identification and characterization of cross- and multiple resistance to acetyl-CoA carboxylase (ACCase)- and acetolactate synthase (ALS)-inhibiting herbicides in black-grass (Alopecurus myosuroides) and Italian ryegrass (Lolium multiflorum) populations from Agriculture 11, 1272
  2. Vijaya Bhaskar AV, Forristal PD, Cook SK, Staples J, Schilder D, Hennessy M & Barth S. (2020). First report on assessing the severity of herbicide resistance to ACCase inhibitors pinoxaden, propaquizafop and cycloxydim in six Avena fatua populations in Ireland. Agronomy 10,
  3. Vijayarajan, V.B.A., Fealy, R.M., Cook, S.K., Onkokesung, N., Barth, S., Hennessy, M. and Forristal, P.D., 2022. Grass-weed challenges, herbicide resistance status and weed control practices across crop establishment systems in Ireland’s mild Atlantic climate. Frontiers in Agronomy, 4, p.1063773. https://doi.org/10.3389/fagro.2022.1063773
  4. Alwarnaidu Vijayarajan, V., Morgan, C., Onkokesung, N., Cook, S., Hodkinson, T., Barth, S., Hennessy M., Forristal, P. (2023). Characterization of Mesosulfuron-Methyl Iodosulfuron-Methyl and Pyroxsulam-Resistant Annual Bluegrass (Poa annua) in an Annual Cropping System. Weed Science, 1-23. doi:10.1017/wsc.2023.55
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