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Michigan State University’s Greenhouse Alert Issue 10, May 10, 2006 |
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| Downy mildew on a plant. | Downy mildew on a plant. |
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| Downy mildew on a plant. | Downy mildew on underside of leaves. |
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| Downy mildew on underside of leaves. | Spores of downy mildew. |
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