Insecticidal potential of essential oils from Cupressus lusitanica growing in ecological zones of Rwanda against adult housefly, Musca domestica L

Nteziyaremye, Papias; Cherutoi, Jackson K.; Makatiani, Jacqueline; Muhizi, Théoneste

doi:10.1007/s42690-023-00972-1

Cited by 1 publication

(1 citation statement)

References 34 publications

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“…Currently, there are many reports presenting EOs showing repellency against housefly adults: lemongrass ( Cymbopogon citratus ), peppermint ( Mentha piperita ), bergamot mint ( Mentha citrata ), blue gum ( Eucalyptus globulus ), khus grass ( Vetiver zizanoides ), and turmeric ( Curcuma longa ) by filter paper application [ 12 ]; tea tree ( Melaleuca alternifolia ), Indian tree basil ( Ocimum gratissimum ), breckland thyme ( Thymus serpyllum ), star anise ( Illicium verum ), nutmeg ( Myristica fragrans ), mango ginger ( Curcuma amada ), and sweet flag ( Acorus calamus ) by spray application [ 7 , 13 ]; and cinnamon ( Cinnamomum zeylanicum ) by cotton pad application [ 14 ].…”

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confidence: 99%

Combinations of Lemongrass and Star Anise Essential Oils and Their Main Constituent: Synergistic Housefly Repellency and Safety against Non-Target Organisms

Soonwera,

Sinthusiri,

Passara

et al. 2024

Insects

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The present study evaluated the housefly repellency of single-component formulations and combinations of lemongrass and star anise essential oils (EOs) and their main constituents. The efficacies of the combinations were compared against those of single-component formulations and DEET. Safety bioassays of all formulations and DEET on non-target species—guppy, molly, dwarf honeybee, and stingless bee—were conducted. GC–MS analysis showed that the main constituent of lemongrass EO was geranial (46.83%) and that of star anise EO was trans-anethole (92.88%). All combinations were highly synergistic compared to single-component formulations, with an increased repellent value (IR) of 34.6 to 51.2%. The greatest synergistic effect was achieved by 1.0% lemongrass EO + 1.0% trans-anethole combination, with an IR of 51.2%. The strongest, 100% repellent rate at 6 h was achieved by 1.0% geranial + 1.0% trans-anethole. They were twice as effective as DEET and caused obvious damage to housefly antennae under microscopic observation. All single-component formulations and combinations were benign to the four tested non-target species. In contrast, DEET was highly toxic to them. The synergistic repellency and biosafety of these two combinations are compellingly strong support for developing them into an effective green repellent.

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