Fungicides for net–type net blotch of barley 2016 trial report

Page last updated: Thursday, 1 September 2016 - 3:09pm

Please note: This content may be out of date and is currently under review.

In 2015, barley net-type net blotch came into prominence due to adoption of susceptible barley varieties such as Oxford. This trial evaluates the efficacy of seed dressing and in-furrow fungicide against barley.

In 2015, barley net-type net blotch was detected at many locations. Some foliar fungicide applications to control the disease failed. In addition, the pathogen which was detected in the lower Great Southern developed resistance to old triazole base fungicide products. Therefore, there is a need to evaluate the effectiveness of the new generation seed dressing and in-furrow fungicide products against early barley net-type net blotch management.

Table 1 Trial details
Site Drawbin Road, South Stirling
Season 2016
Treatments

Seed dressing:

  • Untreated seed (Oxford)
  • Systiva® (fluxapyroxad) at 150mL/100kg seed
  • Uniform (Azoxystrobin + Metalaxyl –M) at 300mL/ha (in-furrow)

Foliar fungicide:

  • Nil
  • Radial® (epoxiconazole + azoxystrobin) at 420mL/ha at Z35 and if needed blanket spray with Prosaro at150mL + 1% v/v Hasten four weeks after
Crop Barley: Oxford sown at 80kg/ha on 13 May
Fertiliser
  • K- Till Xtra at 120kg/ha on 13 May
  • Urea at 80kg/ha on 17 June
  • Flexi N at 70L/ha on 19 July
Herbicide Weed management as necessary

Topics

Contact information

Kithsiri Jayasena
+61 (0)8 9892 8477
Email Kithsiri Jayasena

Author

Kithsiri Jayasena

See Also

Diagnosing net type net blotch
Diagnosing spot type net blotch
Managing net-type net blotch of barley in Western Australia

Regions

Great Southern
Mid West
Wheatbelt