New ‘azole-free’ fungicide accessible for barley growers

Barley growers are set to be taught from a model new “azole-free” cereal fungicide which may also be permitted for use in rye, triticale and oat crops.

Containing the two energetic parts fluxapyroxad and pyraclostrobin, the SDHI and strobilurin combination, usually generally known as Tevos, affords good administration of the three main barley sicknesses, rhynchosporium, net blotch and brown rust.

Developed by agronomy company Basf, the group’s head of enterprise enchancment Steve Dennis says the fungicide efficiently controls barley sickness due to its extreme rain fastness and strong formulation.

“It moreover delivers physiological benefits, whereas preserving straw prime quality, regardless of the sickness stress,” he says.

See moreover: Can varied merchandise help within the discount of on typical N sources?

Fungicide formulation

The fungicide’s first ingredient, SDHI fluxapyroxad, affords environment friendly rhynchosporium administration and reduces brackling, whereas the second, strobilurin pyraclostrobin, controls brown rust and net blotch (along with the F129L net blotch mutation, which is frequent throughout the UK).

Pyraclostrobin may also be talked about to cut back plant stresses by:

  • Preserving leaves greener and extra wholesome
  • Stopping physiological leaf recognizing
  • Enhancing a crop’s nitrogen use effectivity


Defending barley crops all through their early enchancment stage is essential. As barley is sink restricted, yield is dictated by the number of tillers and ears that the crop maintains

Scott Milne, agronomy supervisor at Basf, notes that using Tevos at T1 items the barley crop as a lot as acquire its yield potential.

“All of the items we do with a barley crop early throughout the season has a knock on impression. Not getting on prime of sickness at T1 risks compromising yield, however moreover locations a stress on the later chemistry.

“Growers can’t do loads about crop stress introduced on by the local weather, nonetheless they are going to assure crops arrange properly and maintain them clear and well-nourished, decreasing the possibility of stress later throughout the season.

“By controlling the primary sicknesses rhynchosporium, net blotch and brown rust, there is a optimistic impression on secondary sicknesses much like ramularia and Tevos at T1 items the crop as a lot as perform,” he concludes.

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