Integrated rice and duck farming Furuna

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Integrated rice and duck farming - Furuna
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Fiji Experiment in Industrial Ecology at
Montfort Boys School
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2007 28.2 x 106 cwt 64,000
440 cwt
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Date of first detection and final disease
severity of potato early blight inside and
outside a traditional potato production
area Location first detection final
severityHan 6/11 95 on 8/15PStar 6/15 95
on 8/16 Huit 7/26 17 on
8/13 Nord 7/23 65 on 8/7 Dorn 7/19 10 on
8/13USDA 7/15 20 on 8/16
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• First detection of Colorado Potato Beetle on
  Potatoes
• inside and outside a traditional potato
  production area
• Location Adults larvae Egg massesHan 5/23
  (50) 5/31 5/23 (1)PStar 5/30 (10) 5/30 5/30
  (2)
• Huit 6/6 (6) 6/13 (3) 6/6 (13)Nord 5/31
  (1) 6/14 (23) 5/31 (1)
• Dorn 7/2 (1) 6/20 (25) 6/6 (1)USDA 6/5
  (1) 6/24 (1) 6/5 (1)

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Removing vines mechanically Sets tuber
skins May reduce disease inoculum Makes harvest
easier
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Possible reasons to remove potato foliage

• Reduce potato early dying (Verticillium dahliae)
• Reduce tuber infection by early blight and late
  blight
• Reduce early blight in future (sanitation)
• Eliminate last fungicide
• Reduce late blight survival of oospores
• Earlier skin set
• Reduce Silver scurf (Helminthosporium solani)
• Reduce Black Scurf (Rhizoctonia solani)
• Eliminate vine dessicant
• Eliminate vines in harvest equipment
• Use vines as animal feed or paper or ??
• Reduce weeds

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Potato silver scurf caused by Helminthosporium
solani
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Possible reasons to remove potato foliage

• Reduce potato early dying (Verticillium dahliae)
• Reduce tuber infection by early blight and late
  blight
• Reduce early blight in future (sanitation)
• Eliminate last fungicide
• Reduce late blight survival of oospores
• Earlier skin set
• Reduce Silver scurf (Helminthosporium solani)
• Reduce Black Scurf (Rhizoctonia solani)
• Eliminate vine dessicant
• Eliminate vines in harvest equipment
• Use vines as animal feed or paper or ??
• Reduce weeds

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Possible reasons to remove potato foliage

• Reduce potato early dying (Verticillium dahliae)
• Reduce tuber infection by early blight and late
  blight
• Reduce early blight in future (sanitation)
• Eliminate last fungicide
• Reduce late blight survival of oospores
• Earlier skin set
• Reduce Silver scurf (Helminthosporium solani)
• Reduce Black Scurf (Rhizoctonia solani)
• Eliminate vine dessicant
• Eliminate vines in harvest equipment
• Use vines as animal feed or paper or ??
• Reduce weeds

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Wild potato in Peru
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