What have we learnt this year? Keith Norman Technical Director - - PowerPoint PPT Presentation

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What have we learnt this year? Keith Norman Technical Director - - PowerPoint PPT Presentation

Oct 11, 2023 298 likes •594 views

Proline What have we learnt this year? Keith Norman Technical Director Velcourt Ltd October 20 th 2005 What is Velcourt Velcourts principal activities are:- Farm Management 52,500 has in UK, approx 42,000has in Russia and

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SLIDE 1

Proline – What have we learnt this year?

Keith Norman Technical Director Velcourt Ltd October 20th 2005

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SLIDE 2

What is Velcourt

 Velcourt’s principal activities are:-  Farm Management 52,500 has in UK, approx

42,000has in Russia and Ukraine

 Independent, agronomic advice, over 40 clients

covering more than 20,000 has

 Overseas consultancy in France, Spain and

Germany

 Dedicated R & D department.  Contract trials for Agchem manufacturers,  Involved in HGCA, DEFRA and EU research

contracts

 All results fed directly into Farm Manager team

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SLIDE 3

The team

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SLIDE 4

Why grow Wheat?

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SLIDE 5

Why grow OSR?

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SLIDE 6

 Graph showing world supply and

demand for wheat to be inserted here ……………..

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SLIDE 7

Problems facing growers – Yield is Key

 Confirmed resistance issues

against common problems.

 Diseases – Septoria, mildew  Weeds – Blackgrass, Wild Oats,

Ryegrass, some BLWs

 Insects – Myzus persicae, pollen

beetle.

 PGR issues – Chlormequat and

mepiquat under EU review

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SLIDE 8

 Proline still as active

as Opus

 Tebuconazole slipping  Mixtures no benefit

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SLIDE 9

Triazole Resistance Project – Velcourt - 07

Untreated

  • Opus 0.8

Opus 0.8 Opus 0.5 Proline 0.64 Proline 0.64 Proline 0.4 Folicur 0.8 Folicur 0.8 Folicur 0.5 Poraz 0.72 Poraz 0.72 Poraz 0.48 Poraz 0.72 Poraz 0.72 Opus 0.5 Poraz 0.72 Poraz 0.72 Proline 0.4 Poraz 0.72 Poraz 0.72 Folicur 0.5 Folicur 0.8 Folicur 0.8 Opus 0.5 Proline 0.64 Proline 0.64 Opus 0.5 Opus 0.4 + Poraz 0.36 Opus 0.4 + Poraz 0.36 Opus 0.5 Folicur 0.4 + Poraz 0.36 Folicur 0.4 + Poraz 0.36 Opus 0.5 Folicur 0.4 + Opus 0.4 Folicur 0.4 + Opus 0.4 Opus 0.5 Opus 0.4 + CTL 1.0 Opus 0.4 + CTL 1.0 Opus 0.5 Proline 0.32 + CTL 1.0 Proline 0.32 + CTL 1.0 Opus 0.5 Folicur 0.4 + CTL 1.0 Folicur 0.4 + CTL 1.0 Opus 0.5 Poraz 0.36 + CTL 1.0 Poraz 0.36 + CTL 1.0 Opus 0.5 Opus 0.4 + Comet 0.5 Opus 0.4 + Comet 0.5 Opus 0.5 Fandango 0.75 Fandango 0.75 Opus 0.5 Tracker 0.75 Tracker 0.75 Opus 0.5

9.33 9.88 9.51 9.23 9.35 9.67 9.8 9.28 8.41 9.64 9.94 8.14 8.41 8.38 8.15 7.7 7.91 9.89 9.46 6.83 6 7 8 9 10

5% LSD 0.631 CV 5.0%

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SLIDE 10

Fungicide Trials – Wheat – T1

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SLIDE 11

T1 Fungicide Comparison - Alchemy (18/04) – CTL 1.0 applied @ T0 (27/03) – Opus 0.75 + CTL 1.0 applied @ T2 (03/05)

9.88 10.31 10.83 10.39 10.52 10.51 9.99 10.33 10.17 10.14 10.23 10.41 10.28

P Value 0.01 LSD 0.451 CV 3.1

BAY-07-01b Ashfield, Suffolk Alchemy

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SLIDE 12

T1 Fungicide Comparison - Zebedee (12/04) Septoria and Brown rust present equally CTL 1.0 applied to all treatments @ T0 (14/03) Opus 0.75 + CTL 1.0 applied to all @ T2 (23/05)

9.42 10.09 10.28 10.38 10.34 10.30 10.12 10.08 10.33 10.30 10.34 10.46 10.44

P Value 0.01 LSD 0.352 CV 2.4

BAY-07-01c Drax, Dorset Zebedee

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SLIDE 13

Factorial - Variety / Fungicides Programmes Fonthill, Wiltshire

9.74 9.68 9.65 9.53 9.56

T1 Proline T1 Ceando T1 Tracker T1 Ceando flb T2 Tracker+Opus Managed

5% LSD 0.167

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SLIDE 14

Claire – Stowell Park, Cotswolds

8.74 8.66 8.22 7.53

0.00 2.00 4.00 6.00 8.00 10.00

Yield t/ha

Bay-07-05f F-test Probability 0.008 5%LSD 0.683 CV 5.6

T0 GS30 T1 GS31-32 T2 GS 39 03/04/2007 26/04/2007 30/05/2007

  • Proline 0.6

Prosaro 1.2

  • Fandango 1.5

Fandango 1.5 Proline 0.26 Proline 0.6 Prosaro 1.2 Fandango 0.65 Fandango 1.5 Fandango 1.5

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SLIDE 15

Zebedee, Dorset - Brown rust Flag Leaf 35 DAT Proline 0.6 applied @ T1 (12/04) T2 treatments applied (23/05)

22.1 24.2 4.5 4.6 3.6 5.9 3.4 1.9 13.4 11.4 8.2 10.1 3.0 2.1 1.2 0.8 5.3 3.0

0.0 5.0 10.0 15.0 20.0 25.0 30.0

P Value < 0.01 LSD 2.39

BAY-07-02b Drax, Dorset Zebedee

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SLIDE 16

7.82 8.81 10.57 10.31 10.90 10.48 11.07 11.23 10.38 10.35 10.58 10.27 10.94 11.36 10.93 11.21 10.40 10.45

6.00 7.00 8.00 9.00 10.00 11.00 12.00

P Value < 0.01 LSD 0.486 CV 3.3

BAY-07-02b Drax, Dorset Zebedee

Zebedee, Dorset - Yield Proline 0.6 applied @ T1 (12/04) T2 treatments applied (23/05)

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SLIDE 17

T2 – T3 Fungicide Sequences with Harvest Date

T2 GS39 T3 GS59-63 Harvest Timing 20/05/2007 11/06/2007 5th or 28th August Proline 0.6

  • Early

Proline 0.6 Amistar 0.3 + Proline 0.3 Early Proline 0.6 Amistar 0.3 + Opus 0.4 Early Proline 0.6 Fandango 0.8 Early Proline 0.6 Proline 0.3 Early Proline 0.6 Caramba 0.75 Early Fandango 1.5

  • Early

Fandango 1.5 Amistar 0.3 + Proline 0.3 Early Fandango 1.5 Amistar 0.3 + Opus 0.4 Early Fandango 1.5 Fandango 0.8 Early Fandango 1.5 Proline 0.3 Early Fandango 1.5 Caramba 0.75 Early Proline 0.6

  • Late

Proline 0.6 Amistar 0.3 + Proline 0.3 Late Proline 0.6 Amistar 0.3 + Opus 0.4 Late Proline 0.6 Fandango 0.8 Late Proline 0.6 Proline 0.3 Late Proline 0.6 Caramba 0.75 Late Fandango 1.5

  • Late

Fandango 1.5 Amistar 0.3 + Proline 0.3 Late Fandango 1.5 Amistar 0.3 + Opus 0.4 Late Fandango 1.5 Fandango 0.8 Late Fandango 1.5 Proline 0.3 Late Fandango 1.5 Caramba 0.75 Late

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Factorial Brown Rust Flag leaf 32 DAT

13.80 4.28 3.17 4.65 10.21 8.51

0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 None Amistar 0.3 + Proline 0.3 Amistar 0.3 + Opus 0.4 Fandango 0.8 Proline 0.3 Caramba 0.75

F-test P <0.001 LSD 0.256

LSD = 1.375

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SLIDE 19

9.22 9.99 9.60 10.06 9.64 9.57

8.80 9.00 9.20 9.40 9.60 9.80 10.00 10.20 None Amistar 0.3 + Proline 0.3 Amistar 0.3 + Opus 0.4 Fandango 0.8 Proline 0.3 Caramba 0.75

F-test P <0.001 LSD 0.256

Factorial of Yields

LSD = 0.256

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SLIDE 20

9.53 9.83

8.00 8.20 8.40 8.60 8.80 9.00 9.20 9.40 9.60 9.80 10.00

Proline 0.6 Fandango 1.5

Factorial of T2 fungicide choice - Yield

LSD = 0.148

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9.72 9.64

8.00 8.20 8.40 8.60 8.80 9.00 9.20 9.40 9.60 9.80 10.00

Early - Aug 5th Late - Aut 28th

F-test P <0.11 LSD N/S

Factorial of Harvest date - Yield

LSD = n/s

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T1 Fungicide Programs in Winter Wheat – 2006

80.1 89.6 87.9 69.4 74.5 59.2 79.8 87.8 12.05 12.57 12.69 12.76 12.49 12.61 12.59 12.7 12.67

11.5 12.5 13.5 14.5 10 20 30 40 50 60 70 80 90 100

Untreated Proline 0.4 Proline 0.6 Proline 0.8 Opus 0.5 Opus 0.75 Tracker 1.0 Fandango 1.0 Fandango 1.5

% Septoria Control Yield t/ha

Bayer-06-1a Eau Brink Farm Winter Wheat cv Gladiator

F-test Probability 0.153 5%LSD 0.537 CV 3.0 %

(Utd = 9% Septoria on leaf 2 44 DAT 2)

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SLIDE 23

T1 Fungicide Programs in Winter Wheat 2006

80.1 89.6 87.9 91.3 92.5 87.4 71.7 12.05 12.57 12.69 12.76 12.36 12.77 12.66 12.67

11.5 12.5 13.5 14.5 10 20 30 40 50 60 70 80 90 100

Untreated Proline 0.4 Proline 0.6 Proline 0.8 Proline 0.4 + CTL 1.0 Proline 0.6 + CTL 1.0 Proline 0.4 + Flexity 0.25 Proline 0.4 + Unix 0.5 kg

% Septoria Control Yield t/ha

Bayer-06-1a Eau Brink Farm Winter Wheat cv Gladiator

F-test Probability 0.153 5%LSD 0.537 CV 3.0 %

(Utd = 9% Septoria on leaf 2 44 DAT 2)

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2006 - T2 Prosaro Programs in Winter Wheat

79.8 88.9 95.7 85.5 93.5 93.5 91.6 95.1 92.5 96.1 93.9 95.3 93.4 92.6 94.7 92.3 9.82 10.82 11.04 11.31 11.19 11.45 11.6 11.35 11.32 11.34 11.54 11.25 11.34 11.62 11.43 11.56 11.57

8 9 10 11 12 13 14 20 40 60 80 100

Fully Untreated Untreated @ T2 Opus 0.75 Opus 0.75 + CTL 1.0 Prosaro 0.75 Prosaro 0.75 + CTL 1.0 Prosaro 0.75 + Swift 0.25 Prosaro 0.75 + Swift 0.25 + CTL 1.0 Prosaro 1.0 Prosaro 1.0 + CTL 1.0 Prosaro 1.0 + Swift 0.25 Prosaro 1.0 + Swift 0.25 + CTL 1.0 Opus 1.0 Prosaro 1.0 + Comet 200 0.25 Proline 0.6 + Amistar 1.0 Tracker 1.5 Filan 0.65 + Proline 0.6

% Septoria Control Yield t/ha

Bayer-06-2b SNCF Kent Winter Wheat cv Consort F-test Probability <0.001 5%LSD 0.356 CV 2.2 % (T1 = Proline 0.6 l/ha)

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Stem base fusarium control – 1st wheat after peas Kent 2002 – T1 options

5 6 7 8 9 10 11 LSD 0.36 t/ha

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SLIDE 26

1st wheat Kent 2005 – T1 options

8 8.5 9 9.5 10 10.5 11 11.5

LSD @ 5% 0.3 t/ha

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Summary

 Dose rates of all triazoles used in the field, have had to

increase to 75% doses to maintain level of disease control whether septoria or rusts.

 Period of persistency for a given dose rate has decreased

from a max of 7 weeks to more like 4 weeks for septoria and rust control.

 Think carefully about the use of CTL – it can reduce the

curative effects of Proline

 No evidence this year from the benefit in septoria control

by adding Prochloraz in mixtures or sequences.

 The benefits of Spiroxamine are questionable.

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SLIDE 28

Summary

 Clear dose rate response to Proline between 0.4 and 0.6  Tracker is not a threat.  Strobs have found a place in programmes again for rust

control

 Prosaro looks very effective in high rust situations, equal to

triazole+Strob combinations

 T3 applications are now default – either for late foliar rust

  • r septoria control and ear disease. Proline a good option.

 Proline effect on stem base disease control still very clear.