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Spring Barley Blackgrass Results 2018

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Spring Barley Blackgrass Results 2018

Spring Barley Black Grass Trial

Treatments

1. Untreated 2. 2l/ha Crystal + 0.3l/ha Regatta 3. 1l/ha Bayer New Material 4. 0.3l/ha Regatta + 3l/ha Anthem 5. 0.3l/ha Regatta + 1.5l/ha Anthem 6. 1l/ha Sunfire + 0.3l/ha Regatta

7. 2l/ha Crystal + 3l/ha Defy 8. 2l/ha Crystal + 2l/ha Tower

All treatments randomised and replicated 4 times across the trial with and without 15kg/ha Avadex

2018 Chilcombe Black Grass Trial Pre-emergence Treatments With & Without Avadex

70

64

60

62

57

54

50

40

42

40

39

30

32

Without Avadex With Avadex

25

20

21

20

17

15

10

10

4

0

0

Untreated 2L Crystal + 0.3l Liberator

1L Bayer 3 way

0.3L Liberator + 3l PDM

0.3L Liberator + 1.5l PDM

1L Sunfire + 0.3l Liberator

2L Crystal + 3l Defy

2L Crystal + 2l tower

Protocol ➢ Evaluate efficacy of Avadex ➢ Look at pre-emergence herbicide options in spring barley ➢ Ascertain the most effective Avadex and pre-emergence combination ➢ Compare flufenacet, PDM and prosulfocarb loadings ➢ Fully randomised and replicated block design trial ➢ Plant counts conducted before canopy closure

Conclusions ➢ Best pre-emergence option is treatment 7 ➢ Avadex provides >20% uplift in population control ➢ Autumn population of 300 plants/m2, untreated spring population of 150 plants/m2, treated spring population 57 plants/m2 ➢ >Page 1

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