Unique mode of action
What makes Infinity unique is the active ingredient pyrasulfotole. Pyrasulfotole is the only Group 27 active ingredient in cereals and because of this innovative mode of action, Infinity controls all labeled broadleaf weeds that have become resistant to modes of action.
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How it works
Pyrasulfotole works in three different yet simultaneous ways to control broadleaf weeds.
Action One
Cuts off the Energy Process
Pyrasulfotole stops the weed’s ability to generate an adequate supply of energy by preventing the production of an essential component of the photosynthetic apparatus - disrupts plastoquinone biosynthesis.
Action Two
Cuts off the Vitamin Process
Pyrasulfotole restricts the weed’s ability to produce vitamin E, which protects biological membranes against oxidative stresses – disrupts tocopherol biosynthesis.
Action Three
Cuts off the Protective Process
Pyrasulfotole prevents carotenoid production. This means the weed loses the shield that protects chlorophyll molecules from dangerous ultraviolet rays and excess light. Once removed nothing is present to prevent sunlight from penetrating deep into the leaves, destroying the chlorophyll, and consequently turning weeds white eventually leading to weed death – disrupts carotenoid biosynthesis.
Herbicide resistance: How Infinity can help you today
The Problem
Because of repeated use of herbicides with the same mode of action, herbicide resistance is becoming a major issue. There are 11 broadleaf weed species with confirmed resistance in Western Canada. None of these are resistant to Group 6 or Group 27 – both of which are in Infinity.
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The Solution
There are mulitiple ways to manage herbicide resistance but one of the most effective strategies is to apply multiple modes of action either in a mixture or in sequential applications. Infinity makes managing resistance easy as it contains two synergistic active ingredients pyrasulfotole (the only Group 27 in cereals) and bromoxynil (Group 6).