![]() CEW overwinters in the pupae stage in central and southern Utah and immigrates into northern Utah each spring. The adult moth is tan with a distinct spot and dark margin on its forewings. The larvae have a brown head with alternating dark and light stipes along the length of its body. CEW is the most destructive pest to Utah’s sweet corn. Trichogramma are tiny wasps that parasitize insect eggsĬorn Earworm (CEW) and Tomato Fruit worm are common names given to the larvae stage of Helicoverpa zea.
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