Bioactivity of Cicuta virosa L. var. latisecta Celak. (Umbelliferae: Cicutal) against Red Imported Fire Ant under Laboratory and Field Conditions

Abstract

We have evaluated the bioactivities of compounds from Cicuta virosa L. var. latisecta Celak. against red imported fire ants (Solenopsis invicta Buren) under field and laboratory conditions. The compounds were as follows: methanol extract; petroleum ether, chloroform, and ethyl acetate fractions from the methanol extract; and the active compound isoimperatorin, which was isolated from the chloroform-fraction. Under field conditions, baits containing 0.2% methanol extract, 0.1% chloroform fraction, and 0.05% isoimperatorin efficiently controlled S. invicta, with effectiveness percentages of 95.56%, 97.78%, and 95.56%, respectively on the 30th day after bait application. Such effectiveness percentages were not significantly different from that obtained using the positive control fipronil. The present study showed that C. virosa L. var. latisecta has potential as a natural control agent for the red imported fire ants.

α-Pinene, Caryophyllene and β-Myrcene from Peucedanum terebinthaceum Essential oil: Insecticidal and Repellent Effects on Three Stored-Product Insects

“…As traditional Chinese medicines, the repellent potency showed by A. sinensis and L. sinense means a great deal to safe and green management control on mosquito vectors. Moreover, there are some published papers recording the insecticidal potential of Umbelliferae plants against stored insect pests [24][25][26][27], house flies [28] and fire ants [29].…”