Asparagus
Symptom Cause  
Misshapen, crooked spears tips chewed and scarred slate-gray grubs present
Asparagus Beetles
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Tunnels in stalk near ground level; foliage yellows, dies early
Asparagus Miner
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Young plant cut off at soil
Cutworms
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Plants eaten to the ground
Deer
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Yellow, wilted, stunted shoots then brownish surface color
Fusarium Wilt
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Small spears
Immature Plants
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Ferns are chewed
Japanese Beetles
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Small spears
Over Harvested
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Small spears
Poor Drainage
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Small spears
Poor Fertility
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Reddish-yellow spots on stems, branches; gradually entire plant yellows, weakens, and eventually dies
Rust (on plants)
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Bumps on stalks
Scale
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Black spots, pitting on stem tips, buds, fruit
Tarnish Plant Bugs
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