2. Time of sowing decision making- what we have learnt from 2010-2011 Chris Zaicou-Kunesch

3. Lesson 1 Early sowing is KING If Weeds in check Crop establishment adequate

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6. Gross Income ($/ha) Variety4080120 18 May Calingiri480484480 Fortune518483445 King Rock736767706 Mace694741771 Magenta707779747 Wyalkatchem592647681 8 Jun Calingiri644677734 Fortune574 637 King Rock834942969 Mace800747792 Magenta511550709 Wyalkatchem593719738

7. Lesson 2 Sprouting caused by rain late in grain filling or/and after maturity Variety tolerances have been updated

8. Sprouting

9. Falling Numbers in 2011 TOS Calingiri Fortune King Rock Mace Magenta Wyalkatchem 1353.7199.3248.6311.7256.4282.2 2365382.9417.8444.8456.6441.2

11. Sprouting tolerances VS: Carnamah, Westonia, Emu Rock, Cobra S: Wyalkatchem, Corack, Magenta, Bonnie Rock, King Rock MS: Mace, Justica, Endure MT: Janz, Eagle Rock, Sapphire, Yitpi, Scout, Envoy, Estoc

12. Early Fungicides and Nitrogen can Managing Leaf Spot Diseases (Yellow Spot and Stagonospora Nodorum) Ciara Beard Lesson 3

13. Controlling leaf spot diseases – yellow spot and stagonospora (septoria) nodorum – in wheat-on-wheat cropping 1.Are early foliar fungicide applications (at or prior to first node) effective and profitable? 2.Does nitrogen application enhance the effectiveness of fungicide application? YES

14. Early Growth Stages Herbicide application Z15 - Five Z25 – leaf stage Mainstem and 5 tillers Z31 - First Node on mainstem Z 00 - 09Z 10 - 19Z 20 - 29Z 30 - 39Z 40 - 49 Germination Seedling Growth Tillering Stem Elongation Booting Image courtesy of Nick Poole & Neil Fettell

15. Case of Premature Application? Do early foliar fungicide applications control disease and do they pay, which application time is best? Eight similar trials conducted in 2010 and 2011 in the central + northern wheatbelt, varieties susceptible to yellow spot or stagonospora nodorum, all sown on to wheat stubble.  Six trials were sown, two opportunistic

16. ;;;;;; Fungicide Sprays at Z15, Z25 and Z31 +/- a second spray at Z39 (flag leaf) EGA Eagle Rock (S) Geraldton, WA, 2010. Early spraying can reduce leaf spot diseases when susceptible varieties are sown on wheat stubble

17. ;;;;;;. Fungicide Sprays at Z15, Z25 and Z31 +/- a second spray at Z39 (flag leaf) EGA Bonnie Rock (MS-S), Mingenew, WA, 2010.

18. ........ Early spraying for leaf spot diseases can be economical when S varieties are sown on wheat stubble + conditions favour early disease.

19. .. … Z31 application is most reliable timing for profitability Fungicide Treatment Av. yield increase above untreated (t/ha) Av. profit above untreated ($) Single spray Z15 or Z250.257 Single spray Z310.372 Single spray Z410.351 Double spray Z15/Z25 + Z390.356 Double spray Z31 + Z390.5109

20. Where early disease is severe and developing rapidly on susceptible variety & seasonal conditions favour disease development - Application at tillering or stem extension delays disease development and increases yield Z31 application most reliable timing for profitability May need additional application at flag leaf emergence

21. Nitrogen and disease control Yellow Spot Stagonospora Nodorum 2 varieties : EGA Eagle Rock S MR/MS : WyalkatchemMRMS-S 3 nitrogen treatments 1.Minimum: N at seeding 2.Medium: N at seeding + 19 kg N/ha at Z32 3.Maximum : N at seeding + 19 kg N/ha at Z32 2 fungicide treatments : +/- Z32 spray

22. Disease development under 3 nitrogen regimes on 2 varieties Nil Fung Fung at Z32 Max N Early – YS dominant Late – SNB dominant Early – mixture, Late – YS dominant Min N

23. ...... 20102011 To maximise fungicide return, ensure optimum nitrogen nutrition particularly on Susceptible varieties Yield