Technical Bulletin – 19 July 2017

• Some modest rainfall tallies received across western Victoria last weekend with hopes for more rain on ANZAC day
• Generally, growers have continued with their original sowing plans and made small modifications if required
• Conscious of high reliance on IMI tolerant crops in rotations, some Mallee farmers have made varietal changes eg CoAXium® barley to make use of Group 1 herbicides for grass control, where residues from the prior crop allow.

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.

• Cereals are at stem elongation, some canola is flowering and pulses are still growing slowly.
• Net form net blotch (NFNB) and Septoria are present in barley and wheat respectively. Fungicide plans are being actioned where risk is greatest. Stripe rust has also been detected in other regions, but this is 2-3 months later than last year in commercial crops.
• Red leather leaf is present in oats and prothioconazole applications are occurring.
• Drier weather has seen the disease threat lessen a little for diseases that like cool wet conditions, but there is still a need to be vigilant.
• Preparation for grain storage is commencing with thought going into grain hygiene and silo bag needs.

• Crops have been holding up surprisingly well given the warm dry conditions although most think some top end yield has been sacrificed, particularly in wheat or later crops. Recent rain and a cool run this week should see crops finish OK now where totals were greater than 15-20mm, for some regions it was maybe just a bit late.
• Heliothis and etiella management are taking place to maintain grain yield or more importantly quality in pulse crops.
• Hay quality until recent rain has been good where crops have had even development. Recent rain may drop some quality, and some have waited for this event to pass to cut crops for hay where they could.
• Pre-harvest maintenance is in full swing with growers finalising any needs before it gets busy
• Livestock management leading into summer (shearing, crutching, drenching) is being prioritised where possible to limit demand on time during harvest to manage fly struck sheep.