BCG Special Technical Bulletin – Beet Western Yellows virus in canola
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- Cereals are progressing from late tillering through to GS32 (second node), with stronger canopy development following recent moisture.
- Canola ranges from cabbaging to bud elongation, with some early-sown paddocks now reaching early flowering.
- Pest activity remains on the radar; Lucerne flea is being reported widely across the Wimmera–Mallee, Red-legged Earth Mite pressure is present in parts of the North Central and Wimmera and evidence of mouse damage has been observed in several Wimmera paddocks, highlighting the need for ongoing monitoring.
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- Black keeled slugs are still causing many issues where they are found. Particularly if management was compromised due to access issues for spreading bait. No crop type has been safe.
- Blackleg levels in canola are very high in some Wimmera crops due to high pressure and early sowing.
- Powdery mildew in wheat has been reported about two weeks earlier than last year in the Mallee.
- Net form net blotch (NFNB) and Septoria are present in barley and wheat respectively. Fungicide plans are being actioned where risk is greatest.
- In the northern Mallee there has been some crop wilting despite good moisture—suspect compaction is the cause. It is a good time to check and identify areas that can be managed out of season. Other than that, growers are quietly positive about the season.
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The BCG Technical Bulletin
- 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.
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Technical Bulletin No. 15 – 24.10.25
What's happening:
- 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.
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