Technical Bulletin No. 8 09.07.26

Fusarium Head Blight (FHB): BCG released a special technical bulletin in January 2023, on seed quality and testing seed following the wet spring of 2022. Fusarium Head Blight (Fusarium pseudograminearum) (FHB) was an issue for some due the conditions during flowering and grain fill however don’t underestimate the impact stripe rust which may have been a major contributor to poor grain quality.

• Insect activity is increasing under favourable conditions, though few cases have reached economic thresholds for control.
• Low levels of stripe rust are being detected across Western Victoria, however growers with robust programs that included fungicide at sowing are reporting little to no evidence of foliar disease.
• Low GSR deciles, frosts in early September and favourable prices have growers considering cutting crops for hay instead of harvesting for grain.
• Preparations for harvest are underway.

• In the Mallee, insecticides are being applied and, in some parts, a second grass spray application on pulses to clean up any late germinations.
• Nitrogen (N) applications have stalled awaiting a strong forecast of rain which would likely see growers spreading again.
• The Wimmera is focused on broadleaf weed management, insect control and fungicide applications.
• Some are starting to notice effects of moisture stress around tree lines.
• In many areas the potential is there, but further rainfall is required.

• Stubble burning used as a last resort to allow for sowing.
• Canola crops are being sown or are already emerging in some regions.
• Slug and snail management continuing.
• Mice in localised areas requiring management.
• Crop nutrition budgets are being developed from soil test results and yield expectations.

• Monitoring, seed germination and emergence remain the top priorities for most growers across western Victoria.
• Growers are assessing plant densities of any emerged crops, particularly canola, and adjusting their yield potential expectations.
• After watering germination test areas, some Wimmera growers have elected to re-sow some canola paddocks because less than 5plants/m² could be found.
• With some rain on the forecast this weekend, growers are taking a positive and prepared approach to potential next steps for crop management, particularly regarding inputs for nutrition, pest and weed control.
• Lamb prices are expected to remain strong through spring.