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How can corn ear worms be controlled?

Insecticides need to be applied to the silks within two days of silk emergence. Frequency of application depends upon insect pressure and market acceptance of damaged ears. Since there are generally only 2 to 3 weeks between silk emergence and harvest, the number of applications will seldom exceed 7 under normal insect pressure. The best control measure is to plant as early as possible to avoid having corn silking when the moths arrive to lay eggs.

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Close-up view of an ear of field corn encased in brown husk ready for harvest.
Filed Under: Agriculture, Crops, Commercial Horticulture, Sweet Corn, Corn September 7, 2018

Field corn is harvested after it has dried sufficiently, which means the husks are brown, not green like the husks of fresh sweet corn. (Photo by Kevin Hudson)

Filed Under: Other Vegetables, Peas and Beans, Sweet Corn, Tomato Pepper and Eggplant, Vegetable Gardens August 6, 2001

MISSISSIPPI STATE -- Just as Good Friday signals the time to get the spring garden in the ground, August's heat is the indication that it's time to plant the fall garden.

Filed Under: Sweet Corn, Vegetable Gardens July 3, 2000

By Norman Winter
MSU Horticulturist
Central Mississippi Research & Extension Center

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