The library · Herbicide
Pyrasulfotole
A Group 27 sold with bromoxynil for broadleaf weeds in wheat, durum and barley, including kochia.
- Group
- Herbicide Group 27
- Family
- Pyrazoles and triketones
- Formula
- C14H13F3N2O4S
- Molar mass
- 362.33 g/mol
- You may know it as
- Infinity
- In Canada
- Mostly branded
Structure: PubChem CID 11693711
How it kills
HPPD inhibitors
Blocks the HPPD enzyme, which cuts off the pigments that shield chlorophyll from sunlight.
New growth turns bleached white, then the tissue dies.
Taken in by the leaf, then carried with sugars down to the roots and up to the growing points.
Where it fits
In the season.
Commonly used on
- Kochia
- Broadleaf weeds
- Cereals
Good to know
- It brings a group most kochia has not seen.
- Bleached weeds are the sign it is working.
- On the Prairies it is usually sold with bromoxynil, which puts Groups 6 and 27 in one product.
