Pea
Symptom Cause  
Small, dark spots on leaves; eventually leaves turn black; fruits may blacken and drop
Anthracnose (on plants)
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Leaves wrinkled or curled; discolored, stunted, tend to fall off
Aphids
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Leaves, stems and buds eaten
Armyworms
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Pod split and peas gone; young seedling pulled and partly eaten
Birds
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Brownish or yellow blotches form on leaves and pods; stems may turn purplish; leaves eventually yellow
Blight (bacterial)
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Holes in leaves
Cabbage Loopers
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Holes in leaves
Corn Earworms
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Plants disappear all or in part
Deer
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Gray patches on lower leaves spread upward
Downy Mildew
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Yellowing of foliage and gradual defoliation; plants may become stunted
Fusarium Wilt
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Tip of leaves brown, internal larvae trails visible.
Leaf Miners
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Mottled, crinkled foliage; brown specks appear on fruit, and plants may die
Mosaic Viruses
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Plant stunted, leaves yellowed, root lesions
Nematodes
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Stems, leaves, and pods dusted with white powdery mold; black specks appear later in the season; plants are stunted and vines shriveled
Powdery Mildew
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Plants disappear all or in part
Rabbits
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Yellowed, gangly plants with rotting roots and lower stems; plant die before pods form
Root Rot (fungus)
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Leaves stippled, yellowing or bronze; dry out and drop may be webbing visible; sometimes galls form on leaves
Spider Mites
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Plants disappear all or in part
Woodchucks
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