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Cutworm
- Damage to Sweet Corn
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Iowa State University
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In corns, larvae will feed on leaves,
silk and ears. The eggs are laid on the upper side of the leaves
in the top third of the plant. Upon hatching, young larvae begin
feeding on the leaves in younger plants or move to the whorl of
the plant to feed on pollen in developing tassels. In older plants,
larvae feed on the silk. Larger cutworms will feed on developing
kernels. Cutworms may be difficult to detect since most of the feeding
is done at night and they remain hidden in the soil during the day.
Black cutworms will often cut young plants off at the soil surface.
Variegated cut worms also cut plants off at the soil surface but
will also climb the plants and do considerable foliar feeding damage.
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Iowa State University
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Iowa State University
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How to manage cutworm
Return to cutworm life cycle
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Select this link to browse the damage to
each crop by its pests.
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Select this link to browse the insect pests
arranged alphabetically with links to their descriptions
and life cycle information and the crops they affect.
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©All material is protected
by Section 107 of the 1976 copyright law.
Copyright is held by Cornell University.
Maintained by Jason D. Plate.
Last updated Mar. 1st, 2007.
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