Semi-automatic digital image impact assessments of Maize Lethal Necrosis (MLN) at the leaf, whole plant and plot levels

Shawn Carlisle Kefauver1, Omar Vergara-Diaz2, Georges El-Haddad3, Biswanath Das4, L.M. Suresh4, Jill Cairns5 and Jose Luis Araus2, (1)University of Barcelona, Barcelona, Spain, (2)University of Barcelona, B.E.E.C.A., Barcelona, Spain, (3)Software Engineer, Floor 2, Nassim El Kayem Bldg, Jeita, Lebanon, (4)CIMMYT, ICRAF House, United Nations Avenue, Gigiri, Nairobi, Kenya, (5)CIMMYT, Southern Africa Regional Office, Harare, Zimbabwe