Plant Diseases

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  Harvesting 2007 research plots

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  Locations of corn fungicide trials

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  Yield response to foliar fungicide

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  Fields sampled for SCN

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  Locations of seed treatment experiments

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  Distribution of soybean rust in Iowa in 2007

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  Rainfall limited in 2007 growing season

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  Distribution of soybean rust in the U.S., Nov. 2007

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  Collecting a soil sample for SCN monitoring

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  Locations of 2007 Soybean Variety Trials

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  Field infected with soybean rust

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  Examining soybean leaves in infected field

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  Soybean rust spores

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  Fall soil sampling for soybean cyst nematode

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  Orange pustules of southern rust

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  Southern rust pustules

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  Common rust pustules

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  Anthracnose spores