ABSTRACT

Leaf samples of the two varieties of A. fistulosum and one variety of A. cepa, along with the control B. oleracea var. botrytis, were placed in the containers under their appropriate labels. The correlation of low nitrogen levels with low feeding and slow growth corroborates the results of Y. Chen et al., who found that the development of S. exigua caterpillars that fed upon plants with reduced nitrogen was prolonged. Beet armyworm (BAW) larvae grow faster in higher temperatures on the same host plant and the larval period increased or decreased based on the nutritional value of the host plant. The chapter demonstrates that the larval period for the BAW on three Allium host plants, Allium cepa and two varieties of Allium fistulosum is different in field conditions with variable temperature and humidity.