Beware threat from herbicide resistant weeds

摘要

Growers are being urged to act now to prevent accelerating the rise of herbicide resistant broad-leaved weeds across the UK. The nightmare that many growers face with herbicide-resistant grassweeds such as blackgrass is still some way off in broad-leaved weed populations. However, increasing populations of poppy, chickweed and mayweed resistant to acetolacate synthase (ALS) inhibitors such as sulfonylurea herbicide metsulfuron are indicating that it could become a problem of equal significance in the future.