A Note on Some Ecological Aspects of the Sorghum Stem Borer in the Nuba Mountains, Sudan

Abstract

This study was designed to collect some information about the sorghum stem
borer in the Nuba Mountains, South Kordofan State. It was carried out during 2005/06
and 2006/07 season, to determine the population dynamics and the alternative host plants
of the stem borer. Light trap was used for adult trapping, and a survey was carried out for
host plants. The number of adults was low at the beginning of the season (June),
gradually increased towards the end of the season (October) and the borer disappeared
by the end of November. Night activity of the adults was low at 7:00 pm and increased
gradually towards 10:00 pm. The highest infestation by stem borer (76%) was recorded
on sorghum (Sorghum bicolor L.) followed by Sorghum arundinceum (adar) (63%),
maize, Zea mays (50%) and pearl millet (33%)