Herbicide‐resistant weeds have been observed since the early years of synthetic herbicide
development in the 1950s and 1960s. Since that time there has been a consistent increase …

Resistance to herbicides in arable weeds is increasing rapidly worldwide and threatening
global food security. Resistance has now been reported to all major herbicide modes of …

Weedy plant species that have evolved resistance to herbicides due to enhanced metabolic
capacity to detoxify herbicides (metabolic resistance) are a major issue. Metabolic herbicide …

Rapid and widespread evolution of multiple herbicide resistance in global weed species
endowed by increased capacity to metabolize (degrade) herbicides (metabolic resistance) is …

Cytochrome P450s (P450s) have been at the center of herbicide metabolism research as a
result of their ability to endow selectivity in crops and resistance in weeds. In the last 20 …

Acetohydroxyacid synthase (AHAS) inhibitor herbicides currently comprise the largest site‐
of‐action group (with 54 active ingredients across five chemical groups) and have been …

Non‐target‐site‐based resistance (NTSR) can confer unpredictable cross‐resistance to
herbicides. However, the genetic determinants of NTSR remain poorly known. The current …

Non-target-site resistance (NTSR) to herbicides in weeds can be conferred as a result of the
alteration of one or more physiological processes, including herbicide absorption …

Multiple-herbicide resistance (MHR) in black-grass (Alopecurus myosuroides) and annual
rye-grass (Lolium rigidum) is a global problem leading to a loss of chemical weed control in …

Resistance to acetyl‐CoA carboxylase herbicides is documented in at least 43 grass weeds
and is particularly problematic in Lolium, Alopecurus and Avena species. Genetic studies …