Diseases & Pests of Sweet Corn
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Growing sweet corn is not always easy. Not only weather conditions can make it difficult, but farmers and gardeners may find themselves battling a variety of pests and diseases in order to grow a healthy crop of corn.
Stewart's wilt is a bacterial disease that is transmitted by way of the corn flea beetle and is most common in the northeast area of the United States
Fungal diseases include seed rots, damping off and poor stand caused by planting in cold soil; common rust (rusty appearance on the leaves) caused by high nitrogen, heavy dew and moderate temperatures; and common smut, which appears as large galls (a lumpy growth of spores).
Worms that can damage the leaves, roots, and ears include corn earworms, European corn borers, fall armyworms, corn rootworms, cutworms and wireworms.
Other damaging pests include corn flea beetles, Japanese beetles, corn sap beetles, corn leaf aphids and cornseed maggots.
Methods to control diseases include crop rotation, planting in well-draining areas, planting disease resistant and tolerant varieties, staggered planting, and planting in warm soils.
Depending upon the specific pest involved, pest control may be managed by crop rotation, timing of planting, Insecticidal soaps and sprays and planting of resistant varieties.
- Resource Guide for Organic Insect and Disease Management
- Insect Pests of Sweet Corn
- Organic Pest and Disease Control
sweet corn, beetles, pest control, growing vegetables
About this Author
Carole Ann has been writing since 2009. She has 34 years of experience as an administrative assistant and has written articles on a variety of topics for eHow and Answerbag and she provides travel-related content for LIVESTRONG.COM. Ann has an Associate of Arts in general studies from Carroll Community College.