Prevalence and breeding habitats of the dengue vectors Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in the semi-urban areas of two different climatic zones in Sri Lanka

AbstractInvestigations on oviposition behaviour of dengue vectors are critical for effective controlling of vector breeding. Therefore, the aim of the present study was to determine the oviposition behaviour of dengue vectors, Aedes aegypti and Aedes albopictus in Sri Lanka. Batches of 1000 adult mosquitoes (1 : 1, male: female ratio) housed in rearing cages were used for each experimental setup from Ae. aegypti and Ae. albopictus. Oviposition responses with respect to the size of the ovitrap, colours of the ovitrap, water source, sodium chloride (NaCl) concentration and presence/absence of larvae were evaluated by enumerating the number of eggs laid in the ovitraps. The analysis of variance and cluster analysis were used to investigate the significance in the variations among oviposition. The number of eggs laid by both species were improved with the increasing size of ovitraps. Ae. albopictus indicated the highest mean number of eggs in 0.2% of NaCl than in the ovitraps filled with distilled water. However, the egg laying preference was reduced with increasing salinity in both species. Drain water with low dissolved oxygen (DO) level (0.43 ± 0.12 mg l−1) was the preferred water source for both species, while a significantly high oviposition rate was observed in ovitraps with larvae. Black colour ovitraps attracted the majority of gravid females, while white was least preferred. There were no significant variations among oviposition behaviours of Ae. albopictus and Ae. aegypti. The ability of these vectors to breed in waste water with low DO levels may lead them to attain wide dissemination in the natural environment, enhancing their potential threat to human life.

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Insecticide resistance and, efficacy of space spraying and larviciding in the control of dengue vectors Aedes aegypti and Aedes albopictus in Sri Lanka

Pesticide Biochemistry and Physiology ◽

10.1016/j.pestbp.2013.05.011 ◽

2013 ◽

Vol 107 (1) ◽

pp. 98-105 ◽

Cited By ~ 26

Author(s):

S.H.P.P. Karunaratne ◽

T.C. Weeraratne ◽

M.D.B. Perera ◽

S.N. Surendran

Keyword(s):

Sri Lanka ◽

Aedes Aegypti ◽

Insecticide Resistance ◽

Aedes Albopictus ◽

Dengue Vectors

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Prevalence and potential breeding habitats of dengue vectors Aedes aegypti / Aedes albopictus in significant areas of Lahore, Pakistan

2015 12th International Bhurban Conference on Applied Sciences and Technology (IBCAST) ◽

10.1109/ibcast.2015.7058487 ◽

2015 ◽

Author(s):

Nasrin Abdul Hai ◽

Sana Ullah ◽

Shaikh Abdullah ◽

Farhana Azim

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Breeding Habitats ◽

Dengue Vectors

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A Simple PCR Assay for Discrimination of Dengue Vectors from Nsukka LGA, Nigeria

International Annals of Science ◽

10.21467/ias.10.1.67-77 ◽

2020 ◽

Vol 10 (1) ◽

pp. 67-77

Author(s):

Amos Watentena ◽

Ikem Chris Okoye ◽

Ikechukwu Eugene Onah ◽

Onwude Cosmas Ogbonnaya ◽

Emmanuel Ogudu

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Mosquito Species ◽

Public Health Problem ◽

Major Public Health Problem ◽

Mosquito Vector ◽

Aedes Mosquitoes ◽

Allele Specific ◽

Arboviral Diseases ◽

Dengue Vectors

Mosquitoes of Aedes species are vectors of several arboviral diseases which continue to be a major public health problem in Nigeria. This study among other things, morphologically identified Aedes mosquitoes collected from Nsukka LGA and used an allele specific PCR amplification for discrimination of dengue vectors. Larval sampling, BG-sentinel traps and modified human landing catches were used for mosquito sampling in two selected autonomous communities of Nsukka LGA (Nsukka and Obimo). A total of 124 Aedes mosquitoes consisting of five (5) different species were collected from April to June, 2019 in a cross-sectional study that covered 126 households, under 76 distinct geographical coordinates. Larvae was mainly collected from plastic containers 73% (n=224), metallic containers 14% (n=43), earthen pots 9% (n=29) and used car tyres 3% (n=9), reared to adult stage 69.35% (n=86), and all mosquitoes were identified using standard morphological keys. Five (5) Aedes mosquito species were captured; Aedes aegypti 83(66.94%), Aedes albopictus 33(26.61%), Aedes simpsoni (4.48%), Aedes luteocephalus (≤1%) and Aedes vittatus (≤1%). Nsukka autonomous community had higher species diversity than Obimo. Allele specific amplification confirmed dengue vectors, Aedes aegypti and Aedes albopictus species on a 2% agarose gel. Since the most recent re-emergence of arboviral diseases is closely associated with Aedes species, findings of this study, therefore, give further evidence about the presence of potential arboviral vectors in Nigeria and describe the role of a simple PCR in discriminating some. Further entomological studies should integrate PCR assays in mosquito vector surveillance.

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Oviposition Habitat Selection of Dengue Vectors, Aedes aegypti and Aedes albopictus in Response to Fish Predator

Tropical Life Sciences Research ◽

10.21315/tlsr2016.27.3.16 ◽

2016 ◽

Vol 27 (3) ◽

pp. 117-122 ◽

Cited By ~ 1

Author(s):

Wan Fatma Zuharah ◽

◽

Nik Fadzly ◽

Wilson Kang Wei Ong ◽

Zarul Hazrin Hashim ◽

...

Keyword(s):

Habitat Selection ◽

Aedes Aegypti ◽

Aedes Albopictus ◽

Fish Predator ◽

Dengue Vectors ◽

Selection Of

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Incidência das Formas Imaturas de Aedes albopictus (Skuse) e Aedes aegypti (Linnaeus) no Município de Miguel Pereira, RJ, Brasil

EntomoBrasilis ◽

10.12741/ebrasilis.v3i2.80 ◽

2010 ◽

Vol 3 (2) ◽

pp. 55-58 ◽

Cited By ~ 1

Author(s):

Paulo Roberto Moreira Barbosa ◽

William Costa Rodrigues ◽

Marise Maleck de Oliveira Cabral

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Urban Areas ◽

Rio De Janeiro ◽

Average Rate ◽

Public Health Problem ◽

Waste Land ◽

Immature Form ◽

Relationship Of ◽

Janeiro State

A presença de Aedes albopictus (Skuse) em área urbana representa um risco potencial do inter-relacionamento dessa espécie de mosquito com a população. Este estudo teve como objetivo identificar as formas imaturas de Ae. albopictus encontradas nos depósitos e imóveis do município de Miguel Pereira. O estudo foi realizado no período de 12 meses, ano de 2007, em 27 locais do município de Miguel Pereira, Estado do Rio de Janeiro. As larvas encontradas foram identificadas em laboratório e a análise dos dados foi calculada pelos índices de infestação predial e índice de Breteau. Os tipos de imóveis positivos foram residências (79,44% do total); terrenos baldios (2,56%); comércios (2,56%) e outros tipos de imóveis (15,04%) para Ae. albopictus, e residências (72,72% do total); comércios (6,06%); terrenos baldios (3,03%); e outros tipos de imóveis (18,18%) para Aedes aegypti (L.). Das 3731 larvas, 3562 (95,5%) eram de Ae. albopictus e 169 (4,5%) de Ae. aegypti. O mosquito Ae. albopictus mostrou-se mais presente nos criadouros que Ae. aegypti. A média do índice de infestação predial (IFP) e índice de Breteau (IB) para Ae. albopictus foi 1,0 e 1,9 e para Ae. aegypti de 0,1 e 0,1, respectivamente. As formas imaturas mais abundantemente encontradas no Município de Miguel Pereira no ano de 2007 foram de Ae. albopictus podendo futuramente se tornar um problema de saúde pública. Incidence of Aedes albopictus (Skuse) Immature Form in Miguel Pereira, RJ, Brazil. Abstract. The presence of Aedes albopictus (Skuse) in urban areas represents a potential risk of inter-relationship of this species of mosquito with the population. This study aimed to evaluate the presence of the Ae. albopictus immature forms in deposits and building at Miguel Pereira city, Rio de Janeiro State. The study was carried in the last 12 months, 2007, in 27 locations in Miguel Pereira city. The larvae were identified in laboratory and data analysis was calculated by indicators of building infestation index and the Breteau index. The positive buildings were: residential (79.44% of total); waste land (2.56%), shopping (2.56%) and other types of buildings (15.04%) to Ae. albopictus, and homes (72.72% of total), shopping (6.06%); waste land (3.03%) and other types of buildings (18.18%) to Ae. aegypti (L.). The larvae (3731) collected, 3562 (95.5%) were Ae. albopictus and 169 (4.5%) were Ae. aegypti. The Ae. albopictus are more present in breeding that Ae. aegypti. The average rate of building infestation index (IFP) and Breteau index (IB) for Ae. albopictus was 1.0 and 1.9 and for Ae. aegypti was 0.1 and 0.1, respectively. The Ae. albopictus immature larvae forms were more abundantly found in the Miguel Pereira city in 2007; in future it may become a public health problem.

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Proporsi Larva Aedes aegypti dan Aedes albopictus, Hubungannya dengan Kejadian Demam Berdarah Dengue di Daerah Endemik Suburban Kabupaten Sleman, Yogyakarta

BALABA JURNAL LITBANG PENGENDALIAN PENYAKIT BERSUMBER BINATANG BANJARNEGARA ◽

10.22435/blb.v15i2.1800 ◽

2019 ◽

pp. 163-170

Author(s):

Bobby Fahmi Muldan Pahlevi ◽

Tri Wulandari Kesetyaningsih

Keyword(s):

Aedes Aegypti ◽

Aedes Albopictus ◽

Dengue Hemorrhagic Fever ◽

Urban Areas ◽

Endemic Area ◽

Hemorrhagic Fever ◽

Suburban Area ◽

Dengue Transmission ◽

The Relationship

Dengue Hemorrhagic Fever (DHF) is transmitted by Aedes aegypti and Ae. albopictus. Aedes aegypti chooses to live indoors and Ae. albopictus in outdoors. Aedes aegypti has been proven to play a role in dengue transmission in urban areas. It is assumed that suburbs dominated by gardens, so it is possible that Ae. albopictus acts as a vector. The study aimed to analyze the relationship between Ae. albopictus and DHF incidence in suburban area. The study was conducted in Godean, Sleman Regency. 280 ovitrap were placed indoors and outdoors at across seven villages. Each village was represented by one hamlet, so there were 40 ovitrap of each hamlet. The proportion of ovitrap containing Ae. aegypti and Ae. albopictus larvae was calculated. The results showed that Ae. aegypti larvae was more indoors (78.50%) than outdoors (21.45%) in all villages and negatively correlates with DHF (p=0.036; r=-0.776). Aedes albopictus larvae is more commonly found in gardens (80.64%) than in homes (19.36%) and does not correlate with DHF (p = 0.702). It was concluded that in suburban endemic area of Sleman Regency, Ae. aegypti larvae was more indoors and negatively correlated with DHF. Aedes albopictus larva was more in the garden and did not correlate with DHF incidence.

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