Noun
The larva of a moth (Heliothis armigera) which devours the bolls or unripe pods of the cotton plant, often doing great damage to the crops.
Source: Webster's dictionaryThe cotton bollworm causes enormous losses. Source: Internet
This allows researchers to monitor bollworms that have been sterilized by radiation and released to reduce bollworm infestation. Source: Internet
Bollworm pressure hit threshold early, he said. Source: Internet