Some studies on tobacco diseases in Ceylon - IV.:the economics of field-spraying for the control of frog-eye (Cercospora nicotianae E. and E.)

Park, MalcolmFernando, M.2022-08-222022-08-221938Tropical Agriculturist, 90:p.341-347https://dl-doa.nsf.gov.lk/handle/1/5440Some studies on tobacco diseases in Ceylon - IV.:the economics of field-spraying for the control of frog-eye (Cercospora nicotianae E. and E.)Article