Effects of Cultural Practices on the Incidence of Head Smut in Sweet Corn

Abstract

Abstract Incidence of head smut caused by Sphacelotheca reiliana (Kuhn) Clinton in sweet corn (Zea mays L.) was decreased by frequent early irrigation (total of 15-20 cm of water during the first 18 to 21 days after planting), compared to no irrigation during the same period. The percentage of infection increased as planting depth increased from 2.5 cm to 7.6 cm. Large seed produced fewer infected plants than small seed, whereas the percentage of infected plants produced from medium-size seed was intermediate.