title of presentation · lsd @ p=0.05 = 1.458 cv = 14.8% d1 stubton (06/03) = 22.52% d3 stubton...
TRANSCRIPT
Pest update
Becky Ward
Pest forecasting and plant clinic at PGRO
Pea moth
www.pgro.org
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2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Mean % bruchid damage in field beans in the UK 2006 to 2015
% bruchid
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2007 2008 2009 2010 2011 2012 2013 2014 2015
Mean % bruchid damage for regions
HANTS
YORKS / LINCS
E.ANGLIA
MIDLANDS
NORTH
Crop growth stage comparison 2011 – 2015
• First pod• 2011 = 2 June
• 2012 = 10 June
• 2013 = 21 June
• 2014 = 10 June
• 2015 = 14 June
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2011 2012 2013 2014 2015
% d
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Mean % bruchid damage in field beans in the UK 2011 to 2015
Influence of drilling timing on bruchid damage
Probability = <0.001LSD @ p=0.05 = 1.458CV = 14.8%
D1 Stubton (06/03) = 22.52%D3 Stubton (07/04) = 10.55%
D1 Lincoln (11/03) = 54.04%D3 Lincoln (10/04) = 22.92%
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Stubton Lincoln
% d
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Mean % bruchid damage at Stubton and Lincoln 2015
Drilling 1
Drilling 3
Probability = <0.001LSD @ p=0.05 = 4.141CV = 30.4%
D1 (20/03) = 26.48%
D2 (08/04) = 19.25%
D3 (13/04) = 10.87%
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Drilling 1 Drilling 2 Drilling 3
% d
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Mean % bruchid damage at Dowsby 2015
Influence of plant population
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20 40 60 80
% d
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Plants/m²
Average % damage all sites 2015
Bruchid summary IPM strategy and recommendation for
control
• Check for presence
• Drilling timing – later drilling (and pod-set) leads to reduced damage levels
• There seems to be a trend that higher plant populations can lead to higher damage levels but this needs further investigation
• Temperature – 20°C for 2 consecutive days
• Crop growth stage – look for first pod
Bruchid monitoring 2016
• www.syngenta.co.uk/bruchidcast
• Please contact Becky Ward at PGRO if you
can host a trap site for 2016
• 01780 782585 or 07972 665604
Stem nematode in beans
Unusual incidents – bean seed fly in winter beans
