Research Article

Contact Toxicity Effects of Selected Organic Leaf Extracts of Tithonia diversifolia (Hemsl.) A. Gray and Vernonia lasiopus (O. Hoffman) against Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Figure 1

Comparison of the contact toxicity effects (corrected percent mortality) of the DCM leaf extracts of T. diversifolia and V. lasiopus against S. zeamais. Bar graphs with different superscripts within the same concentration are significantly different at the respective test period ().