scholarly journals Determination of the larvicidal activity of benzoyl thiosemicarbazone and its Ni(II) complex against Aedes aegypti and Anopheles darlingi larvae in Amazonas, Brazil

2018 ◽  
Vol 10 (6) ◽  
pp. 37-42 ◽  
Author(s):  
da Silva Mesquita Rochelly ◽  
Pedro Tadei Wanderli ◽  
Mena Barreto Bastos Ana
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Anopheles Darlingi

scholarly journals Copaifera multijuga ethanolic extracts, oilresin, and its derivatives display larvicidal activity against Anopheles darlingi and Aedes aegypti (Diptera: Culicidae)

2013 ◽  
Vol 23 (3) ◽  
pp. 464-470 ◽  
Author(s):  
Frances Tatiane Tavares Trindade ◽  
Rodrigo Guerino Stabeli ◽  
Antônio Almeida Pereira ◽  
Valdir Alves Facundo ◽  
Alexandre de Almeida e Silva
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Anopheles Darlingi ◽  
Ethanolic Extracts

scholarly journals Extracts of Amazonian Fungi With Larvicidal Activities Against Aedes aegypti

2021 ◽  
Vol 12 ◽  
Author(s):  
Marta Rodrigues de Oliveira ◽  
Ricardo de Melo Katak ◽  
Gilvan Ferreira da Silva ◽  
Osvaldo Marinotti ◽  
Olle Terenius ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Ethyl Acetate ◽  
Larvicidal Activity ◽  
Larval Mortality ◽  
Fungal Strains ◽  
Amazon Rain Forest ◽  
Vector Management ◽  
Global Increase ◽  
Larvicidal Activities

The global increase in diseases transmitted by the vector Aedes aegypti, new and re-emerging, underscores the need for alternative and more effective methods of controlling mosquitoes. Our aim was to identify fungal strains from the Amazon rain forest that produce metabolites with larvicidal activity against Aedes aegypti. Thirty-six fungal strains belonging to 23 different genera of fungi, isolated from water samples collected in the state of Amazonas, Brazil were cultivated. The liquid medium was separated from the mycelium by filtration. Medium fractions were extracted with ethyl acetate and isopropanol 9:1 volume:volume, and the mycelia with ethyl acetate and methanol 1:1. The extracts were vacuum dried and the larvicidal activity was evaluated in selective bioassays containing 500 μg/ml of the dried fungal extracts. Larval mortality was evaluated up to 72 h. None of the mycelium extracts showed larvicidal activity greater than 50% at 72 h. In contrast, 15 culture medium extracts had larvicidal activity equal to or greater than 50% and eight killed more than 90% of the larvae within 72 h. These eight extracts from fungi belonging to seven different genera (Aspergillus, Cladosporium, Trichoderma, Diaporthe, Albifimbria, Emmia, and Sarocladium) were selected for the determination of LC50 and LC90. Albifimbria lateralis (1160) medium extracts presented the lowest LC50 value (0.268 μg/ml) after 24 h exposure. Diaporthe ueckerae (1203) medium extracts presented the lowest value of LC90 (2.928 μg/ml) at 24 h, the lowest values of LC50 (0.108 μg/ml) and LC90 (0.894 μg/ml) at 48 h and also at 72 h (LC50 = 0.062 μg/ml and LC90 = 0.476 μg/ml). Extracts from Al. lateralis (1160) and D. ueckerae (1203) showed potential for developing new, naturally derived products, to be applied in integrated vector management programs against Ae. aegypti.

A Simple and Efficient Protocol for the Knoevenagel Reaction of Benzylidenemalononitriles and the Evaluation of the Larvicidal Activity on Aedes Aegypti

2018 ◽  
pp. 362-374
Author(s):  
Harlyson L. Carvalho ◽  
Andréia L. de Amorim ◽  
Inana F. Araújo ◽  
Bianca L. B. Marino ◽  
David E. Q. Jimenez ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Knoevenagel Reaction

scholarly journals Registro de Culicidae de importância epidemiológica na área rural de Manaus, Amazonas

2008 ◽  
Vol 41 (6) ◽  
pp. 658-663 ◽  
Author(s):  
Maria das Graças Vale Barbosa ◽  
Nelson Ferreira Fé ◽  
Alexandre Herculano Ribera Marcião ◽  
Ana Paula Thomé da Silva ◽  
Wuelton Marcelo Monteiro ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Anopheles Darlingi

A biodiversidade da Região Amazônica inclui diversas espécies de vetores artrópodes em seus diferentes ecótopos, possibilitando o surgimento de doenças como malária, filarioses e arboviroses. De agosto de 2001 a julho de 2002, realizou-se coletas de culicídeos no domicílio, peridomicílio e nas matas da Comunidade São João, área rural de Manaus, Amazonas. Foram capturados 1.240 culicídeos, pertencentes às subfamílias Culicinae (99%) e Anophelinae (1%), somando 50 espécies. O predomínio entre as tribos foi nitidamente de Culicini, com 904 (72,9%) exemplares, destacando-se as espécies Culex usquatus (22,6%) e Culex quinquefasciatus (17,7%). Do total de culicídeos, 1.077 (86,9%) exemplares foram capturados no interior das matas, 101 (8,1%) no peridomicílio e 62 (5%) no intradomicílio. O ecótopo com maior diversidade de espécies foi a mata. Assinalou-se a presença de Anopheles darlingi, Anopheles triannulatus, Aedes aegypti, Haemagogus janthinomys e outros vetores comprovados ou potenciais.

LARVICIDAL ACTIVITY OF SOME CERRADO PLANT EXTRACTS AGAINST AEDES AEGYPTI

2006 ◽  
Vol 22 (2) ◽  
pp. 314-317 ◽  
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

scholarly journals Larvicidal Activity of essential oils from Brazilian plants against Aedes aegypti L.

2004 ◽  
Vol 99 (5) ◽  
pp. 541-544 ◽  
Author(s):  
Eveline Solon Barreira Cavalcanti ◽  
Selene Maia de Morais ◽  
Michele Ashley A Lima ◽  
Eddie William Pinho Santana
Keyword(s):  
Aedes Aegypti ◽  
Essential Oils ◽  
Larvicidal Activity
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