@ARTICLE {BONATO:1998, title = {Selecting a character for identifying larval instars of the stemborers Sesamia calamistis Hampson (Noctuidae) and Eldana saccharina Walker (Pyralidae) on maize}, author = {Bonato, O. and Schulthess, F. }, journal = {Insect Science and its Application}, year = {1998}, volume = {2}, pages = {101--103}, }