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1 June 2014 Bioactivity of Cedarwood Oil and Cedrol Against Arthropod Pests
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Abstract

Heartwood samples from Juniperus virginiana L. were extracted with liquid carbon dioxide, and the bioactivity of carbon dioxide-derived cedarwood oil (CWO) toward several species of ants and cedrol toward ticks was determined. Repellency was tested for ants, and toxicity was tested for ticks. Ants in an outdoor bioassay were significantly repelled by the presence of CWO on a pole leading to a sugar—water solution. Similarly, CWO was a significant repellent barrier to red imported fire ants and prevented them from finding a typical food source. Black-legged tick nymphs exhibited dosage-dependent mortality when exposed to cedrol and at the highest dosage (i.e., 6.3 mg/ml) tested, the cedrol killed 100% of the ticks. These repellency and toxicity results together demonstrate a clear potential for the use of CWO as a pest control agent.

F. J. Eller, R. K. Vander Meer, R. W. Behle, L. B. Flor-Weiler, and Debra E. Palmquist "Bioactivity of Cedarwood Oil and Cedrol Against Arthropod Pests," Environmental Entomology 43(3), (1 June 2014). https://doi.org/10.1603/EN13270
Received: 23 September 2013; Accepted: 1 February 2014; Published: 1 June 2014
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