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Black Knot:
Dibotryon Morbosum Dothideaceae Black Knot Galls on Plum Stems |
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Black Spot:
Diplocarpon Rosae Dermateaceae Black Spot on Rose, Late Infection, Leaf Drop Occurs |
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Crimson Erinium Mite:
Eriophyes Elongatus Crimson Erinium Mite on Silver Maple |
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Mountain Ash Sawfly:
Pristiphora Geniculata Close Up of Mountain Ash Sawfly on Mountain Ash |
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Tomato Hornworm:
Manduca Quinquemaculata Sphingidae Parasitized Tomato Hornworm |
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Plant Pests and Diseases
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The National Agricultural Library Special Collections 10301 Baltimore Avenue Beltsville, MD 20705 301-504-5876 speccoll@nal.usda.gov November 14, 2001 |