Field Evaluations of Broadcast and Individual Mound Treatment for Red Imported Fire Ant, Solenopsis invicta Buren, (Hymenoptera; Formicidae) Control in Virginia, USA

Hamilton Allen, Dini Michele Miller


Field evaluations were conducted to determine efficacy, residual activity, and knockdown potential for fire ant control products.  Broadcast granular products (Advion, 0.045% indoxacarb; and Top Choice Insecticide, 0.0143% fipronil) were individually evaluated, and compared with a combination of two products applied together, and with individual mound applications of Maxforce Fire Ant Killer Bait (1.0% hydramethylnon). After application, the greatest percent reduction (90 days) were observed in the Advion/Top Choice combination plots (100.0%), followed by Top Choice alone (96.4%).  Advion and MaxForce produced significantly lower foraging reductions at 90 days (61.2% and 27.5% respectively).   At the conclusion of the test (day 360), significantly fewer ants were collected in the Advion (777.7), Top Choice (972.8), and combination plots (596.2) than in the control plots (1257.8) (df 13, F = 8.3, P < 0.05). The mean number of ants collected from MaxForce treatment plots was not significantly different from controls (P > 0.05).  Overall, the efficacy and residual studies suggested that the Advion/Top Choice combination produced both the most rapid reduction in ant foraging and the longest lasting control (90%) at 300 days.  When evaluating time to knockdown of foraging populations, the Advion/Top Choice combination also provided the most complete and rapid results by day 7, reducing foraging by 100%. While other products also performed well (75.6 - 95.9% reductions), both the MaxForce and Advion plots had significant increases in foraging at 30-90 days. Overall, foraging knockdown was the most complete in the Avion/Top Choice combination plots at 90 days.


Red Imported Fire Ant; Solenopsis invicta Buren; broadcast; control; bait

Full Text:



Banks, W.A., Williams, D. F. & C. S. Lofgren. (1988). Effectiveness of fenoxycarb for control of red imported fire ants (Hymenoptera: Formicidae) J. Econ. Entomol. 81:83-87.

Barr, C. L. (2002a). The active ingredient indoxacarb as a broadcast bait for the control of red imported fire ants. Texas Coop. Ext., Texas A&M Univ. System. (accessed date: 12 March 2009)

Barr, C. L. (2002b). Indoxacarb bait effects on mound activity and foraging of red imported fire ants. Texas Coop. Ext., Texas A&M Univ. System. (accessed date: 12 March 2009)

Barr, C. L. (2004). How fast is fast?: Indoxacarb broadcast bait. P. 46-50. In Proceedings of the Annual Red Imported Fire Ant Conference, Baton Rouge, LA. 201 p.

Barr, C. L., & Best, R. L. (1999). Comparison of Amdro®, Spectracide® fire ant bait and Diazinon using broadcast and individual mound treatment applications. Results

and Demonstration Handbook. 1997-1999. Texas Agricultural Extension Service. Bryan, TX. 70 p.

Barr, C.L. & Best R. L. (2002). Product evaluations, field research and new products resulting from applied research. SW Ento. Supplement 25:47-52.

Barr, C. L. & Best, R. L. (2004) Comparison of different formulations of broadcast fipronil for the control of red imported fire ants. Result demonstration handbook 1999–2003. 2004. Texas Agric. Ext. Serv. Bryan, TX. (accessed date: 18 Feb. 2011)

Drees, B. M., Vinson, S. B., Gold, R. E. Merchant, M. E., Brown, E., Keck, M., Nester, P. Kostrom, D., Flanders, K., Graham, F., Loftin, K. Hopkins, J., Vail, K., Wright, R. Smith, W., Thompson, D. C., Kabashima, J., Layton, B., Koehler, P. G., Oi, D. H. & Callcott, A. M. (2006). Managing imported fire ants in urban areas. Texas Coop. Ext., Texas A&M Univ. System. MP426. 23 p.

Kolaczninski, J. & Curtis, C. (2001). Laboratory evaluation of fipronil, a phenylpyrazole insecticide, against adult Anopholes (Diptera: Culicidae) and investigation of its possible cross-resistance with dieldrin in Anopheles stephensi. Pest Manag. Sci. 57:41-45.

Vickers, A. J. (2001). The use of percentage change from baseline as an outcome in a controlled trial is statistically inefficient: a simulation study. BMC Medical Research Methodology 6: 1-4.

Williams, D. F, Collins, H. L. & Oi, D. H. (2001). The Red Imported Fire Ant (Hymenoptera: Formicidae): A historical perspective of treatment programs and the development of chemical baits for control. Am. Entomol. 47:146-149.

Hu, X, & Song, D. (2007). Field evaluation of label-rate broadcast treatment with baits for controlling the red imported fire ant, Solenopsis invicta (Hymenoptera: Formicidae). Sociobiology. 50:1107-116.



  • There are currently no refbacks.

JCR Impact Factor 2018: 0.604