Herbicide resistance

Maximise control of problem grass weeds

Know the problem, choose the right residual products and aim for true pre-emergence for maximum efficacy, writes Teagasc researcher Vijaya Bhaskar.

CROPS 9 September 2026

Maximise control of problem grass weeds

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Agronomist survey shows sterile brome most challenging tillage weed to control

Agronomist survey shows sterile brome most challenging tillage weed to control

NEWS 8 September 2026

Test your weeds for herbicide resistance for free

Test your weeds for herbicide resistance for free

NEWS 16 August 2026

Identification guide: look out for grass weeds this harvest

Identification guide: look out for grass weeds this harvest

Identification guide: look out for grass weeds this harvest

CROPS 26 July 2026

Suspect weed resistance? Harvest 2026 is the last chance for free testing

Suspect weed resistance? Harvest 2026 is the last chance for free testing

Suspect weed resistance? Harvest 2026 is the last chance for free testing

NEWS 1 July 2026

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Last chance to resistance test problem tillage weeds for free

Last chance to resistance test problem tillage weeds for free

Harvest 2026 is the last chance to avail of free, herbicide resistance testing at Teagasc Oak Park under the Department funded EVOLVE project.

NEWS 8 April 2026

What four nozzles should you have on the sprayer?

What four nozzles should you have on the sprayer?

You have space for a number of nozzles on your sprayer. Machinery specialist Dermot Forristal has advice on how to choose those nozzles.

CROPS 8 April 2026

Complex resistance evolving in wild oats to ACCase and ALS herbicides

Complex resistance evolving in wild oats to ACCase and ALS herbicides

Wild oats are the most widespread and competitive cereal grass weed in Ireland. Increasing resistance trends in submitted samples cannot be overlooked, writes Vijaya Bhaskar of Teagasc.

CROPS 8 April 2026

Broadleaved-weed resistance update: ALS-resistant pale persicaria confirmed

Broadleaved-weed resistance update: ALS-resistant pale persicaria confirmed

Farms relying solely on ALS herbicides for broadleaved weed control face a significantly higher risk of resistance, writes Vijaya Bhaskar of Teagasc.

CROPS 8 April 2026

The same, but different? Brands and generics

The same, but different? Brands and generics

Huge amounts of money go into finding new chemistry. Generic products make pricing more competitive, but do they stack up to the branded products? Siobhán Walsh reports.

CROP PROTECTION 8 April 2026

Herbicide cross-resistance in grass weeds: why testing is essential

Herbicide cross-resistance in grass weeds: why testing is essential

Knowing the type of resistant populations present is essential for adopting a site-specific containment programme, including drastic actions, writes Vijaya Bhaskar of Teagasc.

CROP PROTECTION 8 April 2026

Do the simple things right to have good crop protection

Do the simple things right to have good crop protection

Crop protection can sometimes be over-complicated, but it doesn’t need to be. Walk crops regularly and keep an eye on issues.

CROP PROTECTION 8 April 2026

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Additive essential in dry maize crops to safeguard every tonne

Dwindling forage stocks due to the drought and high dry matter maize crops, mean using an additive on maize silage is essential, believes Amanda Clements, technical business manager for Volac.

Additive essential in dry maize crops to safeguard every tonne

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