Post harvest applications on Powdery Milde · Powdery Mildew 2015 Presented by: Chris Herries,...
Transcript of Post harvest applications on Powdery Milde · Powdery Mildew 2015 Presented by: Chris Herries,...
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Post harvest
applications
on
Powdery Mildew
2015
Presented by:
Chris Herries,
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Block chosen with high level of PM
Pinot gris, Hawke’s Bay5 day’s post harvest of 2015 harvest
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Plenty of developing Cleistothecia
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Applications made with Silvan G2
Big thanks to Chris Henry
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1000lt/Ha water rate
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10 replications of each treatment
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Treatments
Plot Product Rate Rate Rate
A – White Wettable Sulpur (Thivot) 8kg/Ha
B - Orange Lime Sulphur 3.5%
C - Yellow Nordox 90gm/100lt
D - Pink HML32 – Nordox – Pot Bicarb 1.25lt/100lt 90gm/100lt 300gm/100lt
E - Blue Excel Oil 2%
F – Green Excel Oil + Nordox 2% 90gm/100lt
G- Red Untreated Control -
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Untreated Control
G9 G9+7 days
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Lime Sulphur 3.5% (3.5lt per 100lt)
B2 B2+7 days
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HML32 + Nordox + Potassium Bicarb
D4 D4+7 days
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Excel Oil 2% (2lt per 100lt)
E9 E9+7 days
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Nordox 90gm / 100lt
C5 C5+7 days
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A9+7 days
Wettable Sulphur 8 kg/Ha
A9
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Results
Wettablesulphur
LimeSulphur
Nordox HML32 Oil Oil +Nordox
Control
5
0
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Post harvest Powdery Mildew
applications trial
• Still a work in progress
• Peter Wood (Plant & Food Research)
looking at viability / overwintering of cleistothecia from trial site
• Thanks to• Bridget Evan (technical & coffee support) • Chris Henry (Henry Manufacturing Ltd) • Greg Evans / Iain Latter (Grochem)