2. Snapped Achilles Playing touch rugby Two weeks ago No, I am not too old!

4. Herbicide Resistance Good news and Bad news Peter Newman, AHRI

5. Bad news first

6. SusceptibleResistant Susceptible Glyphosate 450 g/ha Glyphosate 750 g/ha Glyphosate resistance in Wild Radish Mike Ashworth, AHRI

7. Susceptible wild radish

8. 4.5 fold resistant 6.25 L/ha of 480g/L 9 L/ha of 480g/L 12.5 L/ha Glyphosate resistant wild radish

9. Label rate Population dose response Susceptible Resistant

10. Glyphosate resistant ryegrass Glyphosate sustainability working group led by Chris Preston

11. Now for the good news

17. Glen Riethmuller 27 year trial – stubble retained

19. 1% / inch

20. 15cm (6”) 30cm (12”)

21. Seeding Efficiency - % of seeds that emerge Seed rate kg/ha

22. Benefit compared to 12” 10” (25cm) 7.5” (19cm) Reduction in row spacing (cm)511 Wheat yield benefit (kg/ha)4088 $/ha benefit$10.80$23.76

23. Cost compared to 12” 10” (25cm)7.5” (19cm) Extra cost of bar (John Deere)$13,000$24,000

24. Cost compared to 12” 10” (25cm)7.5” (19cm) Extra cost of bar (John Deere)$13,000$24,000 Cost /ha/yr (8yr 2000ha)$0.81$1.50

25. Cost compared to 12” 10” (25cm)7.5” (19cm) Extra cost of bar (John Deere)$13,000$24,000 Cost /ha/yr (8yr 2000ha)$0.81$1.50 Extra fuel ($/ha) – worst case$1.20$3.50

26. Cost compared to 12” 10” (25cm)7.5” (19cm) Extra cost of bar (John Deere)$13,000$24,000 Cost /ha/yr (8yr 2000ha)$0.81$1.50 Extra fuel ($/ha)$1.20$3.50 Delayed sowing cost ($/ha)0$5.56

27. Cost compared to 12” 10” (25cm)7.5” (19cm) Extra cost of bar (John Deere)$13,000$24,000 Cost /ha/yr (8yr 2000ha)$0.81$1.50 Extra fuel ($/ha)$1.20$3.50 Delayed sowing cost ($/ha)0$5.56 Total extra cost /ha$2.01$10.56

28. Scoreboard 10”7.5” Cost$2.01$10.56 Benefit$10.80$23.76 Net Benefit $/ha$8.79$13.20 Wheat only – 2 t/ha. 8 kg/ha/cm

36. Crop Orientation 50% reduction in ryegrass seed set for free Catherine Borger Department of Agriculture and Food WA

37. East-west North-south

43. James Buttle 0427 714 898

47. 650 hours

48. iHSD update

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52. @peterdnewman

54. Thank you

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