Cotton bollworm may refer to:

• Helicoverpa zea, the American cotton bollworm or corn earworm
• Helicoverpa armigera, the African cotton bollworm or tomato grub

See also

• Bollworm

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A major pest in hot countries of irrigated crops. Enters into a summer diapause when irrigated crops are not present and the soil and air temperatures are high. When the end of the dry season comes, the rain cools the soil and pupae come out of diapause. (Nibouche 2004)