Black-grass resistance may be stealing the limelight, but it's broadleaf weeds that are the growing concern in UK crops.

Resistance to ALS herbicides in poppies, mayweed and chickweed is on the rise - it's been confirmed in a number of counties on a range of farms. But no one's sure just how widespread this problem really is - anecdotal evidence suggests far more growers are affected than confirmed cases would indicate.

That's why CPM has teamed up with Nufarm in this grower survey. We're keen to hear your experiences - whether you're finding these weeds are getting harder to control or perhaps you've identified cases of resistant weeds. Maybe you feel this is not an issue, and broadleaf weeds cause you no problems - we'd still like to hear from you.

Everyone who completes the survey will be entered into a FREE draw for a sensational Apple iPad Mini, and there will be pens for the next 20 names selected. Keep your eye out in CPM for results of the survey.

Click here to take survey