Abstract
A study was conducted to evaluate the insecticidal activity of essential oils obtained from root, stem and leaves of Boenninghausenia albiflora (Sapindales: Rutaceae) against Black garden ant Lasius Niger L. (Hymenoptera: Formicidae). The major compounds in these essential oils were identified using gas chromatography-mass spectrometry and their insecticidal activity was tested at three concentrations i.e. 1, 5 and 10% in ethanol. All essential oils showed similar insecticidal and repellent activity at each concentration but significantly different at p≤0.05 from controls with LC50=12.35 μl, while dose dependent effect was significant with R2=0.803. It can be concluded that the three essential oils in this study have both insecticidal as well as repellent effect.
Highlights
Rutaceae, commonly known as Rue or Citrus family is represented in Pakistan by 11 genera and 27 species, many of which have been naturalized in different areas, being cultivated and hybridized for edible, medicinal and ornamental purposes
A tea of the roots of B. albiflora is used in the treatment of malaria while its leaves had toxicological properties against mosquito vectors of malaria, filariasis and dengue [3]
The ethnobotanical properties, presence of essential oils and the increasing demand for natural sources of insecticides encouraged us to undertake a comprehensive study of the insecticidal and repellent activities of the essential oils from B. albiflorausing Lasiusniger (Black garden ant)
Summary
Commonly known as Rue or Citrus family is represented in Pakistan by 11 genera and 27 species, many of which have been naturalized in different areas, being cultivated and hybridized for edible, medicinal and ornamental purposes. The leaves are pounded and applied to cuts and wounds as a styptic and to speed the healing process They are crushed and placed in the nostrils in the treatment of malaria. The ethnobotanical properties, presence of essential oils and the increasing demand for natural sources of insecticides encouraged us to undertake a comprehensive study of the insecticidal and repellent activities of the essential oils from B. albiflorausing Lasiusniger (Black garden ant). They can infest buildings, foundation forms in contact with soil, becoming a minor nuisance [6,7]
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