Weed watch: alarming increase in herbicide resistance
Siobhán Walsh
It is more likely for blackgrass and Italian ryegrass samples to be resistant to one or more herbicides than not, writes Vijaya Bhaskar of Teagasc.
2 June 2024 News
Weed Watch starts this June to tackle resistance
Some weeds have developed resistance to herbicides. Teagasc is collecting weed seed samples from farmers to test for resistance for free.
Timing of treatment critical to optimum weed control
The lift in temperatures in the last two weeks has boosted grass growth rates but the growth of weeds has also taken off.
Time to target grassland weeds
Spraying weeds such as docks and thistles is recommended before they mature and produce seeds.
7 May 2024 Management
Are herbicides effective on broadleaved weeds in your crops?
Effective spring weed control, including of herbicide-resistant broadleaved weeds, requires products with different modes of action, writes Teagasc researcher Vijaya Bhaskar.
24 April 2024 Crops