Insecticide tests in the control of the corn ear worm (Heliothis obsoleta Fab.)

Collins, Clarence Ralph.2015-12-312015-12-311933http://hdl.handle.net/2097/24030Call number: LD2668 .T4 1933 C61Heliothis--Control.Corn--Diseases and pests.Insecticide tests in the control of the corn ear worm (Heliothis obsoleta Fab.)TextMasters theses