The library · Herbicide

Bicyclopyrone

A triketone Group 27, sold with bromoxynil in Talinor and in the Axial premix line for cereals.

Group
Herbicide Group 27
Family
Pyrazoles and triketones
Formula
C19H20F3NO5
Molar mass
399.4 g/mol
You may know it as
Talinor
In Canada
Mostly branded
HERBICIDE · GROUP · 27

Structure: PubChem CID 11188745

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.

More on Group 27

Moves with the sugars

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.

FallBurnoffSeedingEarly in-cropIn-cropFlag and bloomPre-harvestPost-harvest

Commonly used on

  • Kochia
  • Broadleaf weeds
  • Cereals

Good to know

  • Some premixes add a Group 1 for grassy weeds, so check what you are buying.
  • 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.

Same group, same mode of action

Not a rotation partner.

PreviousPyrasulfotole NextFluxapyroxad