How much do you know about herbicide resistance?

Herbicide resistance, particularly in black-grass, is a major threat to the sustainability of UK arable farming – it is a problem the farming industry can’t ignore. Key to managing resistance is understanding how it develops at a cellular and field scale.

To test your herbicide resistance knowledge, we’ve created a quiz which assesses your understanding of the different types of resistance, how to test for resistance, how to manage resistance in the field and much more!

Test your herbicide resistance knowledge!

When was resistance to acetyl-CoA carboxylase (ACCase) inhibitors – better known as ‘fops’ and ‘dims’ first discovered in the UK?

As of 2015, approximately how many herbicide-resistant weed species were there globally?

How much agricultural production is lost to weeds worldwide each year?

How is herbicide resistance defined?

Are herbicides to blame for causing resistance in the first place?

How are resistant genes spread throughout a black-grass population?

There are 0.0001% resistant individuals in a weed population. If there is repeated use of a herbicide, without other control measures, to control this weed, after how many applications would there be over 50% resistant individuals?

Which of the following does NOT increase the potential for the development of herbicide resistance within a population?

Which of the following is the main mechanism conferring enhanced metabolic resistance (EMR)?

What would be the level of herbicide control you would expect in a RRR population in a resistance test where the reference sensitive population is completely controlled ?

You scored 10%!

Well done, you've done a good job, but there is some room for improvement. Check out our Black-grass hub hereto find tips on black-grass control.

You scored 20%!

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You scored 30%!

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You scored 40%!

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You scored 50%!

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You scored 60%!

Well done, you've done a great job and nearly got all our questions correct! To improve your knowledge even more, check out our Black-grass hub here to find tips on black-grass control.

You scored 70%!

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You scored 80%!

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You scored 90%!

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You scored 100%!

Well done, you've done a great job and got all our questions correct! To improve your knowledge even more, check out our Black-grass hub here to find tips on black-grass control.