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27 May 2021 Repellency of p-Anisaldehyde Against Musca domestica (Diptera: Muscidae) in the Laboratory
Allan T. Showler, Jessica L. Harlien
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Abstract

The house fly, Musca domestica L. (Diptera: Muscidae), is a nuisance pest often associated with livestock production, and it can also mechanically transmit the causal agents of human and veterinary diseases. We found that a 0.5% concentration of p-anisaldehyde, produced by many plants consumed by humans, repelled adult M. domestica in static air olfactometer tubes under laboratory conditions for ≥24 h, but by 48 h the repellent activity had worn off. Repellency, however, was not observed in response to 0.5% p-anisaldehyde that had been exposed to sunlight radiation lamps for 2 h. When p-anisaldehyde was aged in darkness for 48 h, it showed strong initial repellency for <1 h. The repellent action of 0.5% p-anisaldehyde was sufficient to keep adult M. domestica from landing on three different food sources when the botanical substance was misted onto the food sources, and when it was placed in proximity to, but not in contact with, the food sources. Extension of p-anisaldehyde's repellent action using solvents other than acetone is discussed.

Published by Oxford University Press on behalf of Entomological Society of America 2021. This work is written by (a) US Government employee(s) and is in the public domain in the US.
Allan T. Showler and Jessica L. Harlien "Repellency of p-Anisaldehyde Against Musca domestica (Diptera: Muscidae) in the Laboratory," Journal of Medical Entomology 58(6), 2314-2320, (27 May 2021). https://doi.org/10.1093/jme/tjab097
Received: 17 March 2021; Accepted: 2 May 2021; Published: 27 May 2021
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KEYWORDS
botanical
house fly
organic
residual effect
sunlight
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