Two experiments were conducted in a greenhouse, with the objective of identifying sources of resistance in 15 corn cultivars to Spodoptera frugiperda. The following cultivars were utilized CMS-35 , CMS-36, Dina-70, Cargill-525, Pioneer-3210, Pioneer-6875, BR-201, BR-451, AG-106, AG-510, CMS-22, Contimax-322, BR-201, Jatinã C3 Anão, Cargill-511 e BR-106. When the plants had 8 to 10 leaves they were infested with 30 newly ecloded larvae per plant. Damage evaluation was made 10 to 14 days after infestation, in both experiments, using a visual note scale from 0 to 9. There were no statistical differences among cultivars for the parameters evaluated damage, weight, length and survival larvae. Nevertheless a significant linear correlation was found between weigth x larvae length (n = 0,7776, P = 0,01), demonstrating that these parameters can be utilized in the study of corn resistence to S. frugiperda.
Resistance; Zea mays; Foliar Damage; Fall armyworm; Larvae weight
