Major blackgrass resistance study
SCIENTISTS are hoping for a good response to Englands first unbiased survey to assess the true extent of blackgrass resistance.
"While we know herbicide-resistant blackgrass occurs in 30 counties, little information is available on what proportion of farms is affected," says IACR-Rothamsted researcher Steve Moss.
In the survey, 100 growers from South Yorks to Somerset – all picked at random – are being encouraged to identify a suitable field from which samples can be taken.
It does not matter whether they perceive blackgrass, resistant or otherwise, as a problem, says Dr Moss. "The more responses we get from the farmers we are contacting, the more reliable the survey." *