East Midlands Agronomy 2018 PDF
Preview East Midlands Agronomy 2018
East Midlands Agronomy 2018 Tuesday 23 January 2018 Programme 09:30 Registration 10:00 Chair’s welcome and AHDB update - Harry Henderson, AHDB Session 1: Developing a longer term agronomic plan 10:15 Managing grass weed resistance and stewardship in glyphosate use – Dr Paul Gosling, AHDB 10:45 Your soils, your future – Ian Robertson, Glenside 11:05 Reduced soil movement in practice – Russell McKenzie, Monitor Farmer (2014- 2017) & Nuffield Scholar 11:25 Refreshment break Session 2 Harvest 2018: halfway there 11:45 Using the fertiliser manual & app – Sajjad Awan, AHDB 12:15 Spread, spray and application management – Tom Edmondson, Catchment Advisor 12:35 Agronomist round up of issues found in the field so far – Maddy Vaughan, Indigro 12:55 Closing comments 13:00 Lunch & event close Chair’s welcome & AHDB update Harry Henderson, Cereals & Oilseeds Knowledge Exchange Manager East Midlands Managing grass weed resistance and stewardship in glyphosate use Dr Paul Gosling, AHDB Crop Health & Protection Scientist Glyphosate is vulnerable • Once thought to have a low risk of resistance • 34 weed species worldwide now resistant • Not all down to GMOs • Six species are resistant in Europe 2,500,000 ) a h ( d e t 2,000,000 a e r t s p o Large increase in glyphosate rc 1,500,000 B G use in the UK since the 1990s fo a e 1,000,000 r A 500,000 0 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 9 9 9 9 9 9 9 9 9 9 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 9 9 9 9 9 9 9 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Minimising the risk of glyphosate resistance in UK Australian experience with annual ryegrass (Lolium rigidum) • Widespread development of resistance to post-em herbicides • Increased use of reduced and zero tillage • Increased use of glyphosate • Sound familiar? • First case of glyphosate resistance 1996 • Now 680 cases of glyphosate resistance Weed Resistance Action Group http://www.pesticides.gov.uk/guidance/industries/pesticides/advisory-groups/Resistance-Action-Groups/wrag Key weeds of concern • Black-grass • Rye-grasses • Bromes Good news Good news 1: No glyphosate-resistant black- grass has been detected in the UK Good news 2: No glyphosate-resistant rye- grass has been detected in the UK However… Glasshouse Test Less good news 540 g a.i./ha equivalent (full label rate) • Some black-grass populations show reduced sensitivity to glyphosate • 132 populations tested The best predictor of sensitivity was glyphosate use from September to May in the previous 10 years BBSRC-AHDB black-grass resistance initiative (BGRI)
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