Jun 26, 2025 · *In 2025, one new species with resistance to herbicides was identified. These were two populations of Lesser Jack (Emex spinosa) identified which were resistant to Group 2.

Herbicide resistance facts Resistance is the inherited ability of an individual plant to survive and reproduce following a herbicide application that would kill a ‘wild type’ individual of the same …

1 day ago · There are currently 539 unique cases (species x site of action) of herbicide resistant weeds globally, with 273 species (156 dicots and 117 monocots). Weeds have evolved …

There are currently 47 weed species which have confirmed herbicide resistance status in Australia. These are resistant to 10 different Modes of Action. Thirty of these species are …

The challenge Australian grain growers have become increasingly reliant on herbicides to control weeds over the past 30 years with the transition to minimum and zero tillage farming systems.

Over 25 weed species in Australia currently have populations that are resistant to at least one herbicide mode of action (MOA) group. Herbicide resistance is normally present at very low …

RESULTS: A total of 15 876 individual resistance tests were conducted by screening two million seeds at the recommended label rate.