Radish
Symptom Cause  
Leaves yellow, slow growth, plant wilts, dies
Black Rot
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Seedling stems severed
Cutworms
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Tiny, black hopping insect, shot holes in foliage
Flea Beetles
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Pale leaves turning yellow
Nitrogen Deficiency
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Reddish purple leaves
Phosphorus Deficiency
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Not thinned; high temperature; too little sun; too much nitrogen
Poor Root Development
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Leaf centers dark green
Potassium Deficiency
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Young plants wilt in heat, may yellow/die
Root Maggots
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Holes chewed from outside to middle of leaves
Vegetable Weevil
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