Results 121 to 130 of about 11,157,745 (269)

Evaluation of fractions and 5,7-dihydroxy-4',6-dimethoxy-flavone fromClerodendrum phlomidis Linn. F. against Helicoverpa armigera Hub.

Brazilian Archives of Biology and Technology, 2015
Twelve fractions from chloroform extract of Clerodendrum phlomidis and 5,7-dihydroxy- 4',6-dimethoxy-flavone (pectolinaringenin) were evaluated against Helicoverpa armigera.
Veeramuthu Duraipandiyan, Chelliah Muthu, Kathirvelu Baskar, Naif Abdullah Al-Dhabi, Savarimuthu Ignacimuthu   +4 more
doaj   +1 more source

Chemical composition and larvicidal activity of the essential oil of Tagetes minuta Linnaeus from the southern Brazilian highlands [PDF]

Brazilian Journal of Pharmaceutical Sciences
Tagetes minuta L. is a naturalized species that is not endemic to the high-altitude fields of Santa Catarina in southern Brazil. In this study, we investigated the composition of the essential oil (EO) from the flowers of the plant and its larvicidal ...
Elisiane de Bona Sartor, Renan Reisdörfer Schorr, Fernando Cesar Martins Betim, Cintia Aparecida dos Anjos, Camila Freitas de Oliveira, Luciane Dalarmi, Deise Prehs Montrucchio, Josiane de Fátima Gaspari Dias, Obdulio Gomes Miguel, Marilis Dallarmi Miguel   +9 more
doaj   +1 more source

Toxicity of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack) seed kernel to Aedes aegypti (L.) [PDF]

, 2011
The larvicidal activity of various concentrations of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa(Jack) seed kernel was assayed on an Aedes aegypti (L.) test population under controlled laboratory conditions.
Aran Ngampongsai, Ekkarat Kaewnang-O, Sanan Subhadhirasakul, Teerapol Srichana   +3 more
core   +1 more source

Larvicidal Activity of Silver Nanoparticles Synthesized Using Extracts of Ambrosia arborescens (Asteraceae) to Control Aedes aegypti L. (Diptera: Culicidae)

, 2018
The mosquito species Aedes aegypti is the primary vector of dengue, chikungunya, and Zika infections worldwide. Since effective vaccines or drugs are not available for the prevention and/or treatment of these pathologies, vector control has been adopted ...
Bianca Morejón, F. Pilaquinga, Flavia Domenech, Danny Ganchala, A. Debut, Marco Neira   +5 more
semanticscholar   +1 more source

Evaluation of larvicidal activity of the essential oil of Allium macrostemon Bunge and its selected major constituent compounds against Aedes albopictus (Diptera: Culicidae)

Parasites & Vectors, 2014
Background During the screening programme for new agrochemicals from Chinese medicinal herbs and local wild plants, the essential oil of dried bulbs of Allium macrostemon Bunge (Liliaceae) was found to possess larvicidal activity against mosquitoes.
Xin Chao Liu, Qiyong Liu, Ligang Zhou, Zhi Long Liu   +3 more
doaj   +1 more source

Quantitative Structure–Activity Relationships of Mosquito Larvicidal Chalcone Derivatives

Journal of Agricultural and Food Chemistry, 2012
The mosquito larvicidal activities of a series of chalcones and some derivatives were subjected to a quantitative structure-activity relationship (QSAR) study, using more than a thousand constitutional, topological, geometrical, and electronic molecular descriptors calculated with Dragon software.
Pasquale, Gustavo Antonio, Romanelli, Gustavo Pablo, Autino, Juan Carlos, Garcia, Javier, Ortiz, Erlinda del Valle, Duchowicz, Pablo Román   +5 more
openaire   +3 more sources

Evaluation of phytosynthesised silver nanoparticles from leaf extracts of Leucas aspera and Hyptis suaveolens and their larvicidal activity against malaria, dengue and filariasis vectors

Parasite Epidemiology and Control, 2017
The present study deals with the green synthesis of silver nanoparticle from the aqueous leaf extracts of Leucas aspera and Hyptis suaveolens as reducing agent and to investigate the larvicidal activity of synthesized silver nanoparticles.
D. Elumalai, M. Hemavathi, C. V. Deepaa, P. K. Kaleena   +3 more
semanticscholar   +1 more source

Larvicidal Compounds Extracted from Helicteres velutina K. Schum (Sterculiaceae) Evaluated against Aedes aegypti L.

Molecules, 2019
Helicteres velutina K. Schum (Sterculiaceae), a member of Malvaceae sensu lato, is a Brazilian endemic plant that has been used by the indigenous tribe Pankarare as an insect repellent.
Diégina A. Fernandes, Renata P. C. Barros, Yanna C. F. Teles, Louise H. G. Oliveira, Jéssica B. Lima, Marcus T. Scotti, Fabíola C. Nunes, Adilva S. Conceição, Maria de Fátima Vanderlei de Souza   +8 more
doaj   +1 more source

Mosquito host range and field activity of Bacillus sphaericus isolate 2297 (serotype 25). [PDF]

, 1988
Volume:

core  

Evaluation of larvicidal activity and brine shrimp toxicity of rhizome extracts of Zingiber zerumbet (L.) Smith

Revista da Sociedade Brasileira de Medicina Tropical, 2013
Introduction In this study, we used dichloromethane (DCM) and methanol (MeOH) extracts of the Zingiber zerumbet rhizome to evaluate brine shrimp lethality and larvicidal activity on Aedes aegypti and Anopheles nuneztovari mosquitoes.
Augusto Bucker, Nadia Cristina Falcao-Bucker, Cecilia Veronica Nunez, Carlos Cleomir de Souza Pinheiro, Wanderli Pedro Tadei   +4 more
doaj   +1 more source