the acetolactate synthase enzyme.

a group of organisms having the same genotype, or any number of strains of a species of microorganisms having differentiable physiologic characteristics.

a seed which germinates in cold soil and matures with cool weather and short periods of daylight.

pollination of a flower or plant with pollen from another flower or plant causing the progeny (seed) to exhibit characteristics of both parents.

an information-based campaign designed to help farmers slow down or reduce the negative impact of herbicide-resistant weeds.

any ag dealer who has been selected to be part of the Defy Resistance initiative. These dealers will have experts who are equipped with spreading the word about herbicide resistance in Western Canada and are a trusted resource for all farmers with herbicide resistance issues.

the capacity of crop plants to develop and produce under water-deficient environments.

the enzyme 5-enolpyruvylshimate-3-phosphate synthase.

a herbicide is described as being a member of a particular numbered group. These numbers refer to a specific mode of action.

the inherited ability of an individual plant to survive a herbicide application that would kill a normal population of the same species.

the practice of rotating herbicides with different modes of action so the same mode of action is not used year after year on the same field.

the way a herbicide kills a weed is called its mode of action (MOA). Most often it describes the disruption in a plant process, such as an enzyme inhibitor like ALS (Group 2) or a cell membrane disrupter, like PPO (Group 14).

two or more herbicidal actives from different modes of action that each control the same target weed. (ie. a Group 2 and a Group 4 that both control wild mustard, used together will control the weed with multi effective modes of action control.)

different modes of action, not necessarily on the specific target weed. (ie. a Group 1 for grassy weeds and a Group 2 for broadleaf weeds is still called multiple modes of action.)

pollination between unrelated plants.

the protoporphyrinogen oxidase enzyme.

the practice of keeping track of all crop protection inputs applied to each field each year.

the site of action is the specific binding site or enzyme impacted by the herbicide active ingredient. It may also be referred to as the target site. One herbicide may have multiple sites of action. Or herbicides with different modes of action may act at different sites of action.

a change to the molecular target of the herbicide.