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Herbicide Resistance In No Tillage Farming Systems          Dr David Minkey    david.minkey@wantfa.com.au     www.wantfa.c...
Sustaining no-till & glyphosate                        D’Emden et al 2009
Resistance Surveys  Frequency of herbicide resistance        in Western Australia   Mechelle Owen, Michael Walsh & Stephen...
Crop variety testing zones         30 plus sites visited         in each region                         Sampled           ...
Multiple Resistant Annual Ryegrass Populations
Multiple resistance Wild Radish 84%H1/M1/L1  65%H2/M2/L2   39% H3/M3/L3 28%H4/M4/L4
Years to resistance for different herbicides - USA                    35                                              ALS ...
(Roundup) glyphosate @ 450g/haR               S
(Gramoxone) paraquat @ 200g/haR               S
(Hoegrass) diclofop @ 1000g/haR                   S
(Verdict) haloxyfop @ 52g/haR                   S
(Fusilade) fluazifop @ 100g/haR                     S
(Achive) tralkoxydim @ 152g/haR                     S
(Sertin) sethoxydim @ 100g/haR                   S
The Rise and Rise of         GlyphosateAustralian Herbicide Resistance Initiative      University of Western Australia
Glyphosate: a once in a         life time herbicide“Glyphosate is as important toworld agriculture as penicillin is to hum...
2009 Global Herbicide Sales                            Source: Cropnosis Ltd     Atrazine Nicolsulfuron  Clodinafop Fenoxa...
$ 5 billion19   7419   7619   7819   8019   8219   8419   86        Knockdown use19   8819   9019   9219   9419   9619   9...
Global GM Crops (million ha)               •Soybean, maize, cotton and canola               •90% RR160               •80% ...
Argentine GM soybeans v No-till No-till                          Argentine RR soybeans & farming                     16   ...
How to be       inherbicide resistance
Corn, Cotton                  and Soybean                      BeltCorn 40 m haSoybean 30 m haCotton   5 m ha
Corn, Cotton                          and Soybean                              BeltCorn 40 m ha (85% glyphosate resistant)...
RR soybean removed previous     herbicide diversity
GLYPHOSATE   BELT
Palmer Amaranth inin RR Cotton Palmer Amaranth RR Cotton
Learning from GM cropping in Canada        Cereal, Canola                         Corn/Soy
Learning from Canada• Wheat the major crop• GM Canola dominant but with diversity    - Liberty Link Canola    - Clearfield...
Glyphosate Resistance in Australia 133 cases of resistant ryegrass       State   No of populations        SA            4...
Glyphosate resistance• Not limited to broadacre situations resistance hasbeen found in:   • Vineyards   • Orchards   • Roa...
Probability of glyphosate resistance                             1                                        Glyphosate every...
Harvest weed seed       mgt, double knock!• Up to 85% of ryegrass seed “harvested”  can be collected in the chaff fraction
Burn Narrow windrows
HSD – double knock                     Photo: Piers Blake
Bale everything!!
300                               250Wild radish seed (m 2)                               200                             ...
Targeting weed seeds allowscrop production to continue - Chaff collection - Harvest residue baling - Windrow burning - Cha...
Herbicide resistance in no tillage farming systems. David Minkey
Herbicide resistance in no tillage farming systems. David Minkey
Herbicide resistance in no tillage farming systems. David Minkey
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Herbicide resistance in no tillage farming systems. David Minkey

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A presentation from the WCCA 2011 conference in Brisbane.

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Transcript of "Herbicide resistance in no tillage farming systems. David Minkey"

  1. 1. Herbicide Resistance In No Tillage Farming Systems Dr David Minkey david.minkey@wantfa.com.au www.wantfa.com.au
  2. 2. Sustaining no-till & glyphosate D’Emden et al 2009
  3. 3. Resistance Surveys Frequency of herbicide resistance in Western Australia Mechelle Owen, Michael Walsh & Stephen Powles Australian Herbicide Resistance Initiative www.ahri.uwa.edu.au
  4. 4. Crop variety testing zones 30 plus sites visited in each region Sampled every 5km H
  5. 5. Multiple Resistant Annual Ryegrass Populations
  6. 6. Multiple resistance Wild Radish 84%H1/M1/L1 65%H2/M2/L2 39% H3/M3/L3 28%H4/M4/L4
  7. 7. Years to resistance for different herbicides - USA 35 ALS Inhibitors 30 25Resistant species 20 ACCase inhibitors 15 Triazines 10 5  Glyphosate 0 0 10 20 30 40 50 Years of use
  8. 8. (Roundup) glyphosate @ 450g/haR S
  9. 9. (Gramoxone) paraquat @ 200g/haR S
  10. 10. (Hoegrass) diclofop @ 1000g/haR S
  11. 11. (Verdict) haloxyfop @ 52g/haR S
  12. 12. (Fusilade) fluazifop @ 100g/haR S
  13. 13. (Achive) tralkoxydim @ 152g/haR S
  14. 14. (Sertin) sethoxydim @ 100g/haR S
  15. 15. The Rise and Rise of GlyphosateAustralian Herbicide Resistance Initiative University of Western Australia
  16. 16. Glyphosate: a once in a life time herbicide“Glyphosate is as important toworld agriculture as penicillin is to human health” Powles 2010
  17. 17. 2009 Global Herbicide Sales Source: Cropnosis Ltd Atrazine Nicolsulfuron Clodinafop FenoxapropS-MetalochlorMesosulfuron 2,4-D Acetochlor Glufosinate Mesotrione Paraquat Glyphosate 0 1000 2000 3000 4000 5000 600 Sales ($m)
  18. 18. $ 5 billion19 7419 7619 7819 8019 8219 8419 86 Knockdown use19 8819 9019 9219 9419 9619 9820 0020 0220 0420 06 History of glyphosate20 08 Introduction of RR Crops20 10
  19. 19. Global GM Crops (million ha) •Soybean, maize, cotton and canola •90% RR160 •80% globally traded soybeans are RR140120 •60% globally traded canola are RR10080604020 0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010Source: ISAAA
  20. 20. Argentine GM soybeans v No-till No-till Argentine RR soybeans & farming 16 20 GM Soybeans RR Soybeans No-till Farming (m ha) 16GM Soybeans (m ha) 12 No-till farming 12 8 8 4 99% RR 4 0 0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Trigo J & Cap J
  21. 21. How to be inherbicide resistance
  22. 22. Corn, Cotton and Soybean BeltCorn 40 m haSoybean 30 m haCotton 5 m ha
  23. 23. Corn, Cotton and Soybean BeltCorn 40 m ha (85% glyphosate resistant)Soybean 30 m ha (95% glyphosate resistant)Cotton 5 m ha (95% glyphosate resistant)
  24. 24. RR soybean removed previous herbicide diversity
  25. 25. GLYPHOSATE BELT
  26. 26. Palmer Amaranth inin RR Cotton Palmer Amaranth RR Cotton
  27. 27. Learning from GM cropping in Canada Cereal, Canola Corn/Soy
  28. 28. Learning from Canada• Wheat the major crop• GM Canola dominant but with diversity - Liberty Link Canola - Clearfield Canola - RR Canola – 80% Diversity in crops and herbicides= Sustainability
  29. 29. Glyphosate Resistance in Australia 133 cases of resistant ryegrass State No of populations SA 49 NSW 48 WA 22 Vic 14 Other Species - Liverseed grass (3) - Awnless barnyard grass (18) - Windmill grass (1) - Fleabane (8) Photo: Andrew Heinrich
  30. 30. Glyphosate resistance• Not limited to broadacre situations resistance hasbeen found in: • Vineyards • Orchards • Roadside verges • Railway lines • Irrigation channels • Airstrips• Fencelines/crop margins – using glyphosate asonly method for weed control will lead to evolutionof resistance GLYPHOSATE STILL WORKING ON MOST FARMS – KEEP IT THAT WAY Photo: Andrew Heinrich
  31. 31. Probability of glyphosate resistance 1 Glyphosate every yearProbability of resistance 0.8 Glyphosate/paraquat rotation Glyphosate then paraquat sequence 0.6 0.4 0.2 0 0 5 10 15 20 25 30 Year Neve et al 2003 weed research Cumulative probability distributions for predicted evolution of glyphosate resistance in annual ryegrass in a 30-year simulation of a Wheat-Lupin-Wheat-Canola rotation with no tillage at sowing
  32. 32. Harvest weed seed mgt, double knock!• Up to 85% of ryegrass seed “harvested” can be collected in the chaff fraction
  33. 33. Burn Narrow windrows
  34. 34. HSD – double knock Photo: Piers Blake
  35. 35. Bale everything!!
  36. 36. 300 250Wild radish seed (m 2) 200 No cart Cart 150 100 50 0 -10 0 10 20 30 40 50 60 70 80 90 100 110 Distance (m)
  37. 37. Targeting weed seeds allowscrop production to continue - Chaff collection - Harvest residue baling - Windrow burning - Chaff destruction
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