Breeding for resistance in maize to Southwestern corn borer and fall armyworm
1989
Williams, W.P. | Davis, F.M. (USDA Agricultural Research Service, Mississippi, MS (USA). Crop Science Research Laboratory)
Efforts to increase the level of resistance in maize, Zea mays L., to leaf feeding by the southwestern corn borer (SWCB), Diatraea grandiosella Dyar, were initiated by the United States Department of Agriculture-Agriculture Research Service team at Mississippi State (USA) in the mid-1960s. The program was expanded to include research on resistance to fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) about 10 years later. Inbred germplasm lines with resistance to both insects have been developed and released. Selections have been based primarily on visual evaluations of leaf feeding following artificial infestation of plants with insect eggs or larvae. Evaluations of plants naturally infested with fall armyworms have also been utilized. Generally, plants of the most resistant lines were self-pollinated and the selfed progeny reevaluated in successive generations. Antigua Gpo. 2 was used as a source of resistance to both the SWCB and the FAW
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