Experimental and Applied Acarology

, Volume 48, Issue 3, pp 239–250

Efficacy of the new repellent BioUD® against three species of ixodid ticks

  • B. W. Bissinger
  • C. S. Apperson
  • D. E. Sonenshine
  • D. W. Watson
  • R. M. Roe


BioUD® with the active ingredient 2-undecanone originally derived from wild tomato plants is a new repellent recently registered by the US EPA. Repellent efficacy of BioUD® (7.75% 2-undecanone) and DEET (98.11%) was examined in the laboratory using a choice test between repellent-treated and control filter paper surfaces for Amblyomma americanum, Dermacentorvariabilis, and Ixodesscapularis. BioUD® provided greater repellency against A. americanum and I. scapularis than DEET. No difference was found between BioUD® and DEET against D. variabilis. In head-to-head assays between BioUD® and DEET, undiluted and 50% dilutions of BioUD® were more repellent than undiluted DEET against all three species tested. Similarly, a 25% dilution of BioUD® was more repellent than DEET against A. americanum while no difference in mean percentage repellency was found between a 25% dilution of BioUD® and DEET against I. scapularis. Based on regression analysis, the concentration of BioUD® required for equivalent repellency to 98.11% DEET was 39.5% for D. variabilis and 29.7% for I. scapularis. A log-probit model could not be constructed for A. americanum from the dosages tested. Based on filter paper head-to-head assays, BioUD® is at least 2–4 times more active as a repellent than DEET against three species of ixodid ticks under the conditions of our laboratory bioassays.


Arthropod repellent BioUD DEET Ticks Undecanone 


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • B. W. Bissinger
    • 1
  • C. S. Apperson
    • 1
  • D. E. Sonenshine
    • 2
  • D. W. Watson
    • 1
  • R. M. Roe
    • 1
  1. 1.Department of EntomologyNorth Carolina State UniversityRaleighUSA
  2. 2.Department of Biological SciencesOld Dominion UniversityNorfolkUSA

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