The larvae of many lepidopteran species are major pests in agriculture. Some of the major pests include Tortricidae, Noctuidae, and Pyralidae. The larvae of the Noctuidae genus "Spodoptera" (armyworms), "Helicoverpa" (corn earworm), or "Pieris brassicae" can cause extensive damage to certain crops. "Helicoverpa zea" larvae (cotton bollworms or tomato fruitworms) are polyphagous, meaning they eat a variety of crops, including tomatoes and cotton. "Peridroma saucia" (variegated cutworms) are described as one of the most damaging pests to gardens, with the ability to destroy entire gardens and fields in a matter of days.