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Bioefficacy of Lemongrass and Tea Tree Essential Oils Against House Fly, Musca domestica.

ABSTRACT:

Abstract

The management of house fly, Musca domestica has become immensely important to prevent epidemics of many detrimental diseases. In view of this objective, the present study demonstrates the efficacy of lemongrass (LG) and tea tree essential oils (TTEOs) against M. domestica. The TTEO proved to be more lethal against larvae and adults of M. domestica depicting an LC₅₀ at 14.88 mg/ dm³ which was 17.19 mg/ dm³ for LGEO. In contrast, pupicidal effect of LGEO was much higher (LD₅₀, 14.49 µl/0.25L) as compared to TTEO. The LGEO drastically reduced the total body sugar, glycogen and protein contents by 3.29, 2.95 and 7.56 fold, respectively, contrasting with high influence of TTEO on lipid content of the late 3rd instar larvae. A considerable reduction in gut enzymes secretion was observed due to treatment of EOs thereby altering gut physiology of the insect. Moreover, significant inhibition of acetylcholine esterase (AchE) was also observed with LGEO at LC₅₀ concentration (5.33 mg/ml) inhibiting insect neurotransmission. The gas chromatography-mass spectrometric (GC-MS) analysis of the LGEO showed 12 major compounds dominated by Citral whereas TTEO contained only 5 major compounds. Further analysis by field emission scanning electron microscopy (FESEM) revealed distortion and shrinkage of larval bodies caused by the treatment of EOs. These overall observations brand LG and TT-EOs as potential organic-insecticides against M. domestica.

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Supplementary information

The online version of this article (10.1007/s40011-020-01220-z) contains supplementary material, which is available to authorized users.

SUBMITTER: Chintalchere JM

PROVIDER: S-EPMC7890385 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Bioefficacy of Lemongrass and Tea Tree Essential Oils Against House Fly, Musca domestica.

Chintalchere Jyoti M JM Dar Mudasir A MA Raut Kishor D KD Pandit Radhakrishna S RS

Proceedings of the National Academy of Sciences, India. Section B 20210218 2

<h4>Abstract</h4>The management of house fly, Musca domestica has become immensely important to prevent epidemics of many detrimental diseases. In view of this objective, the present study demonstrates the efficacy of lemongrass (LG) and tea tree essential oils (TTEOs) against M. domestica. The TTEO proved to be more lethal against larvae and adults of M. domestica depicting an LC50 at 14.88 mg/ dm3 which was 17.19 mg/ dm3 for LGEO. In contra ...[more]

PMID: 33619421

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Project description:House flies are of major concern as vectors of food-borne pathogens to food crops. House flies are common pests on cattle feedlots and dairies, where they develop in and feed on animal waste. By contacting animal waste, house flies can acquire human pathogenic bacteria such as Escherichia coli and Salmonella spp., in addition to other bacteria, viruses, or parasites that may infect humans and animals. The subsequent dispersal of house flies from animal facilities to nearby agricultural fields containing food crops may lead to pre-harvest food contamination with these pathogens. We hypothesized that odors from honeydew, the sugary excreta produced by sucking insects feeding on crops, or molds and fungi growing on honeydew, may attract house flies, thereby increasing the risk of food crop contamination. House fly attraction to honeydew-contaminated plant material was evaluated using a laboratory bioassay. House flies were attracted to the following plant-pest-honeydew combinations: citrus mealybug on squash fruit, pea aphid on faba bean plants, whitefly on navel orange and grapefruit leaves, and combined citrus mealybug and cottony cushion scale on mandarin orange leaves. House flies were not attracted to field-collected samples of lerp psyllids on eucalyptus plants or aphids on crepe myrtle leaves. Fungi associated with field-collected honeydews were isolated and identified for further study as possible emitters of volatiles attractive to house flies. Two fungal species, Aureobasidium pullulans and Cladosporium cladosporioides, were repeatedly isolated from field-collected honeydew samples. Both fungal species were grown in potato dextrose enrichment broth and house fly attraction to volatiles from these fungal cultures was evaluated. House flies were attracted to odors from A. pullulans cultures but not to those of C. cladosporioides. Identification of specific honeydew odors that are attractive to house flies could be valuable for the development of improved house fly baits for management of this pest species.

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Bioefficacy of Lemongrass and Tea Tree Essential Oils Against House Fly, Musca domestica.

Abstract

Graphic abstract

Supplementary information

Publications

Bioefficacy of Lemongrass and Tea Tree Essential Oils Against House Fly, <i>Musca domestica</i>.

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