Build a robust program around residuals 10/01/2025 FacebookTwitterEmail Random weed surveys have identified that 14 per cent of ryegrass samples collected in the Central West region of NSW in 2020 were resistant to glyphosate, which is a major concern that can’t be ignored. (Supplied) Grain producers in the Central West region of New South Wales are approaching the tipping point of herbicide efficacy to […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password