Young, David Seasonal incidence of the bollworm and tobacco budworm complex in cotton fields of Mississippi / David Young, and J. R. Brazzel - State College, Miss : Mississippi State University - 2 p. - Mississippi Agr. Exp. Sta. Information sheet; 836 . LCCN: 202472 Subjects--Topical Terms: Orugas Heliothis (Helicoverpa) zea Heliothis virescens Algodón -- Plagas