Vol. 10, Issue 5, Part D (2025)

Author(s): Dhivya Bhoopathy, Narayanaperumal Jeyathilakan, Selvarayar Arunkumar, Angappan Mangalagowri and Palanisamy Selvaraj

Abstract: Semiochemicals aid in intra and inter-specific communication among the lower forms of life. Allomones are inter-specific deterrent compounds that are otherwise termed as non-host semiochemicals being predominant in certain breed or individuals favouring and protecting the emitter. In case of dogs, Beagles were found to be resistant to tick infestation compared to other breeds and it was attributed to the chemical components in their skin (allomones) that deter the ticks. These allomones are known to possess repellent activity. In the current study, the spatial repellence of adult Rhipicephalus sanguineus has been assessed using a vertical bioassay. It was found that allomone possess repellent activity similar to DEET.