Larvicidal activity of selected plant extracts and their combination against the mosquito vectors Culex quinquefasciatus and Aedes aegypti

The chemical composition and larvicidal activity of essential oils derived from the leaves and rhizomes of Zingiber montanum (J. Koenig) Link ex. A. Dietr. were reported. The main compounds in the leaf oil were -pinene (13.8%), -phellandrene (11.3%) and -pinene (7.3%) while the rhizome oil was dominated by sabinene (41.1%), terpinen-4-ol (22.7%) and (E)-nerolidol (14.3%). The minimum lethal concentration (larvicidal activity) LC50 of the rhizome oil at 24 h against Aedes albopictus was 35.17 μg/mL, while LC50 values of 32.20 μg/mL and 31.12 μg/mL were obtained against Aedes aegypti and Culex quinquefasciatus respectively. At 48 h the oil displayed larvicidal action with LC50 values of 23.18 μg/mL, 25.58 μg/mL and 18.99 μg/mL respectively towards Ae. albopictus, Ae. Aegypti and Cx. quinquefasciatus. The leaf oil did not exhibit significant mortality and larvicidal action. The results indicate the potential of rhizome essential oil of Z. montanum as a source of larvicidal agent.

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Ligusticum sinense Nanoemulsion Gel as Potential Repellent against Aedes aegypti, Anopheles minimus, and Culex quinquefasciatus (Diptera: Culicidae)

Insects ◽

10.3390/insects12070596 ◽

2021 ◽

Vol 12 (7) ◽

pp. 596

Author(s):

Anuluck Junkum ◽

Wanchai Maleewong ◽

Atiporn Saeung ◽

Danita Champakaew ◽

Arpaporn Chansang ◽

...

Keyword(s):

Aedes Aegypti ◽

Culex Quinquefasciatus ◽

Disease Transmission ◽

Skin Irritation ◽

Mosquito Vectors ◽

Plant Family ◽

Anopheles Minimus ◽

Human Volunteers ◽

Nanoemulsion Gel ◽

Fresh Preparation

Ligusticum sinense Oliv. cv. is a species of Umbelliferae (Apiaceae), a large plant family in the order Apiales. In this study, L. sinense hexane extract nanoemulsion gel (LHE-NEG) was investigated for mosquito repellency and compared to the standard chemical, N,N-diethyl-3-methylbenzamide (DEET), with the goal of developing a natural alternative to synthetic repellents in protecting against mosquito vectors. The results demonstrated that LHE-NEG afforded remarkable repellency against Aedes aegypti, Anopheles minimus, and Culex quinquefasciatus, with median protection times (MPTs) of 5.5 (4.5–6.0), 11.5 (8.5–12.5), and 11.25 (8.5–12.5) h, respectively, which was comparable to those of DEET-nanoemulsion gel (DEET-NEG: 8.5 (7.0–9.0), 12.0 (10.0–12.5), and 12.5 (10.0–13.5) h, respectively). Evaluation of skin irritation in 30 human volunteers revealed no potential irritant from LHE-NEG. The physical and biological stability of LHE-NEG were determined after being kept under heating/cooling cycle conditions. The stored samples of LHE-NEG exhibited some changes in appearance and differing degrees of repellency between those kept for 3 and 6 heating/cooling cycles, thus providing slightly shorter MPTs of 4.25 (4.0–4.5) and 3.25 (2.5–3.5) h, respectively, when compared to those of 5.0 (4.5–6.0) h in fresh preparation. These findings encourage commercially developed LHE-based products as an alternative to conventional synthetic repellents in preventing mosquito bites and helping to interrupt mosquito-borne disease transmission.

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LARVICIDAL ACTIVITY OF SOME CERRADO PLANT EXTRACTS AGAINST AEDES AEGYPTI

Journal of the American Mosquito Control Association ◽

10.2987/8756-971x(2006)22[314:laoscp]2.0.co;2 ◽

2006 ◽

Vol 22 (2) ◽

pp. 314-317 ◽

Cited By ~ 39

Author(s):

A. M. S. RODRIGUES ◽

J. E. DE PAULA ◽

N. DEGALLIER ◽

J. F. MOLEZ ◽

L. S. ESPÍNDOLA

Keyword(s):

Aedes Aegypti ◽

Larvicidal Activity ◽

Plant Extracts

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Adulticidal and repellent properties of indigenous plant extracts against Culex quinquefasciatus and Aedes aegypti (Diptera: Culicidae)

Parasitology Research ◽

10.1007/s00436-011-2669-9 ◽

2011 ◽

Vol 110 (5) ◽

pp. 1607-1620 ◽

Cited By ~ 47

Author(s):

Marimuthu Govindarajan ◽

Rajamohan Sivakumar

Keyword(s):

Aedes Aegypti ◽

Plant Extracts ◽

Culex Quinquefasciatus ◽

Indigenous Plant

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Microbiome Interaction Networks and Community Structure From Laboratory-Reared and Field-Collected Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus Mosquito Vectors

Frontiers in Microbiology ◽

10.3389/fmicb.2018.02160 ◽

2018 ◽

Vol 9 ◽

Cited By ~ 34

Author(s):

Shivanand Hegde ◽

Kamil Khanipov ◽

Levent Albayrak ◽

George Golovko ◽

Maria Pimenova ◽

...

Keyword(s):

Community Structure ◽

Aedes Aegypti ◽

Aedes Albopictus ◽

Culex Quinquefasciatus ◽

Interaction Networks ◽

Mosquito Vectors

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Zika mosquito vectors: the jury is still out

F1000Research ◽

10.12688/f1000research.9839.1 ◽

2016 ◽

Vol 5 ◽

pp. 2546 ◽

Cited By ~ 4

Author(s):

Walter S. Leal

Keyword(s):

Aedes Aegypti ◽

Yellow Fever ◽

Culex Quinquefasciatus ◽

Zika Virus ◽

Field Data ◽

Vector Competence ◽

Sexual Transmission ◽

Mosquito Vectors ◽

Yellow Fever Mosquito ◽

The Common

After a 40-year hiatus, the International Congress of Entomology (ICE 2016) convened in Orlando, Florida (September 25-30, 2016). One of the symposia at ICE 2016, the Zika Symposium, covered multiple aspects of the Zika epidemic, including epidemiology, sexual transmission, genetic tools for reducing transmission, and particularly vector competence. While there was a consensus among participants that the yellow fever mosquito, Aedes aegypti, is a vector of the Zika virus, there is growing evidence indicating that the range of mosquito vectors might be wider than anticipated. In particular, three independent groups from Canada, China, and Brazil presented and discussed laboratory and field data strongly suggesting that the southern house mosquito, Culex quinquefasciatus, also known as the common mosquito, is highly likely to be a vector in certain environments.

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