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

Authors

  • Yong-Qing Tian South China Agricultural University
  • Dong-Mei Cheng Zhongkai University of Agriculture and Engineering
  • Zhi-Xiang Zhang South China Agricultural University

DOI:

https://doi.org/10.13102/sociobiology.v62i3.460

Keywords:

Cicuta virosa L. var. latisecta, isoimperatorin, Solenopsis invicta, insecticidal activity

Abstract

We 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. The 7 d LC50 values of the methanol extract, petroleum ether, chloroform, and ethyl acetate fractions and isoimperatorin toward micrergates were 111.20, 214.45, 40.90, 569.67, and 25.73 mg/kg, res­pectively. The corresponding LC50 values toward macrergates were 155.78, 308.38, 75.01, 776.75, and 42.77 mg/kg, res­pectively. 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.

Author Biographies

Yong-Qing Tian, South China Agricultural University

College of Natural Resourcesand Environment, PhD

Dong-Mei Cheng, Zhongkai University of Agriculture and Engineering

Department of Plant Protection, PhD

Zhi-Xiang Zhang, South China Agricultural University

College of Natural Resourcesand Environment, PhD  

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Published

2015-09-30

How to Cite

Tian, Y.-Q., Cheng, D.-M., & Zhang, Z.-X. (2015). Bioactivity of Cicuta virosa L. var. latisecta Celak. (Umbelliferae: Cicutal) against Red Imported Fire Ant under Laboratory and Field Conditions. Sociobiology, 62(3), 351–355. https://doi.org/10.13102/sociobiology.v62i3.460

Issue

Section

Research Article - Ants

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