Diabrotica virgifera virgifera LeConte has been the devastating pest of maize in Europe and North America. Different methods have been suggested to combat it. Due to shortcomings of most applied methods, in this study essential oils ROSE (Rosa rubiginosa), TEA TREE (Melaleuca alternifolia), LAVENDER (Lavandula angustifolia), PEPPERMINT (Mentha × piperita) were selected as bio-pesticides to fight against WCR. KARATE ZEON pesticide was used as a standard insecticide. Complete Randomized Block Design with three replications was used. Due to weather conditions (drought), the emergence and flight of WCR were affected and the number of them present did not cause observable damage in the control experiment. Therefore, the experiment ended with negative results. Peppermint essential oil was the most effective among others with a mean silk length of 4.4cm.