POULTRY MITE REPELLENT POTENTIALITY OF ESSENTIAL OIL FROM BLUMEA MOLLIS (D. DON) MERR
Remya Krishnan*, Maya S Nair and Jerry C. Jacson
ABSTRACT
Dermanyssus gallinae possess significant threat to egg laying hens in many parts of the world. Continued use of insecticides may result in mite resistance, chemical residues in food and undesirable environmental effects. Therefore it is the need of the hour to find alternative approaches for controlling D. gallinae. The present study aims to extract the essential oil from B. mollis and study their bio-activities. Major methodologies adopted were extraction of essential oil by hydrodistillation. In order to study the mite repellent or killing property, Dermanyssus gallinae were collected from infected poultry and they were treated with different concentrations of B. mollis essential oil dissolved in DMSO (once in a day for a week). A commercial mite repellent Tik -Out was used as standard. The essential oil yielded from B. mollis by hydro distillation was yellow in colour, transparent and clear with characteristic medicinal aroma and the yield was 100μl/100g. The observed mite repellent potentiality of B. mollis essential oil was at par withTik Out. Higher concentration of Tik –Out is toxic to poultry, pets and humans. So B. mollis essential oil can be recommended as a potent natural mite repellent.
Keywords: Blumea mollis, Dermanyssus gallinae, essential oil, mite repellent.
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