Raspberry
Symptom Cause  
Stem tips die; oval spots with purple edges, gray centers on canes
Anthracnose (on plants)
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Leaves curled and discolored; honeydew on undersides of leaves, sooty mold forms
Aphids
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Fruit disappears; purple bird manure
Birds
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Small holes in canes surrounded by sawdust; leaves wilt
Borers
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Roots, stems and/or crowns develop tumors (galls); outer layer turns brown and corky.
Crown Gall
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Very young canes cut off at soil level
Cutworms
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Plants disappear all or in part
Deer
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Areas between veins turn yellow, then brown; lower surface of leaves are covered with white, purple or black hairy growth.
Downy Mildew
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Small misshapen fruits
Fruit Fly Larvae
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Soft, watery spots appear on stems, leaves or fruit; fuzzy white or gray mold forms.
Gray Mold (Botrytis Blight)
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Holes in leaves and flowers
Japanese Beetles
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Foliage yellowed or white mottling, glaze of honeydew; plant weakens
Leafhoppers
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Holes in fruit; leaves rolled up
Leafrollers
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Fan-shaped plaques of white fungal strands between bark and wood of roots and lower trunk; armillaria mellea
Oak Root Fungus
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White spots on leaves; eventually entire leaf is covered with powder
Powdery Mildew
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Leaves yellowed and may drop
Psyllids
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Young canes disappear all or in part
Rabbits
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Plants grow slowly; stunted; leaves chewed
Root Weevils
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Orange or brown pustules on leaves
Rust (on plants)
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Weak plant, stunted growth, less fruit
Sawflies
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Leaves yellow, drop; bumps on leaves and stems; sometimes sticky material on leaves
Scale
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Black mold on leaves and stems of plants
Sooty Mold
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Leaves discolored; black fecal spots on underside of leaf.
Thrips
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Yellowing of foliage and gradual defoliation; plants may become stunted
Verticillium Wilt
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