Annual Geranium Problems

Discussion in 'Garden Pest Management and Identification' started by jonhofer, Feb 10, 2008.

  1. jonhofer

    jonhofer Member

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    Location:
    Winnipeg, Canada
    Hello,
    We operate a small greenhouse, and every year, we have the same problems with the geranium seedlings. They're ok for a few weeks, but then the leaves shrivel up and the plant wilts and dies. I'm wondering what the problem is?


    I've posted some pictures:

    http://picasaweb.google.com/jonhofer1984/GeraniumsWithProblems

    The white on the leaves is not a reflection. It's what's actually affecting the plants

    Any help?

    JH
     
    Last edited: Feb 11, 2008
  2. Douglas Justice

    Douglas Justice Well-Known Member UBC Botanical Garden Forums Administrator Forums Moderator VCBF Cherry Scout Maple Society 10 Years

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    Location:
    Vancouver, Canada
    I'm no Pelargonium expert (by any means), but if you keep having the same problems, at the same stage of growth, I'd be asking questions about environmental pollutants, like oxides of sulfur or nitrogen, ethylene or ozone. Common sources for these pollutants include automobiles and industry.

    • Is the greenhouse located near any internal combustion engine?
    • Near a driveway where the exhaust from a car might be present?
    • Near a freeway, industrial plant, coal-burning facility?
    • Do you store apples under the benches (a source of ethylene)?
    • How do you heat the greenhouse (a catalytic heater)?
    • From where does the water come? Has it been tested?
     

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