A new bioinsecticide for control of beet armyworm, SPOD-X LC , is based on an insect-specific baculovirus which causes a lethal infection in larvae. It is produced in vivo (i.e. in beet armyworm larvae) by biosys and became commercially available in 1995. It provides a safe and effective means of controlling young larvae without disrupting natural control of cotton pests by natural enemies. Recommendations are given for using SPOD-X LC in management of beet armyworm on cotton.