Sweet Corn
How can corn ear worms be controlled?
Insecticides need to be applied to the silks within 2 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.
