black dot and silver scurf in slv - colorado state universitypotatoes.colostate.edu › wp-content...
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Results:• Black dot :
Higher disease rating on Reds compared to the control, the bio-control alone, and bio-control + pathogen.
• Silver scurf:White-Yellow exhibited significantly higher disease rating with the bio-control alone than pathogen + bio-control.
• No significant difference between treatments for Purple purple, purple yellow, and white.
• Russets: Control, bio-control alone and bio-control + pathogen no significant difference.
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Results by Weight:
• Bio-control + Silver Scurf was effective on:
White YellowPurple Yellow Red
• Bio-control + Black dot was not effective on:
White
• Bio-control alone reduced weight loss compared to control and but not when in combination with black dot:
Russets
• No significant difference: Purple purple
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Post Harvest Treatments
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Thank you!
• Acknowledgements • Dr. Kirk Broders and the Crop Pathology research lab at CSU Fort Collins.
• All SLV growers participating in soil survey and providing tubers
• San Luis Valley Research Center and staff
• Colorado Potato Administrative Committee for funding the black dot and silver scurf research