Results 21 to 30 of about 22,365 (209)

Terpenic Constituents of Essential Oils with Larvicidal Activity against Aedes Aegypti: A QSAR and Docking Molecular Study

open access: yesMolecules, 2023
Aedes aegypti is a vector for the arbovirus responsible for yellow fever, Zika and Chikungunya virus. Essential oils and their constituents are known for their larvicidal properties and are strong candidates for mosquito control.
Adrián Ulises Cruz-Castillo   +5 more
doaj   +1 more source

Screening of Asteraceae (Compositae) Plant Extracts for Larvicidal Activity against Aedes fluviatilis (Diptera: Culicidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1997
Ethanol extracts of 83 plants species belonging to the Asteraceae (Compositae) family, collected in the State of Minas Gerais, Brazil, were tested for larvicidal activity against the mosquito Aedes fluviatilis - Diptera: Culicidae).
Maria E Macêdo   +7 more
doaj   +1 more source

Isolation and characterization of native Bacillus thuringiensis strains from Saudi Arabia with enhanced larvicidal toxicity against the mosquito vector Anopheles gambiae (s.l.). [PDF]

open access: yes, 2016
BACKGROUND: Worldwide, mosquito vectors are transmitting several etiological agents of important human diseases, including malaria, causing millions of deaths every year.
Ahmed, AM   +5 more
core   +1 more source

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

open access: yesBrazilian 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   +4 more
doaj   +1 more source

Antifungal and Larvicidal Activities of Phlorotannins from Brown Seaweeds

open access: yesMarine Drugs, 2021
Phlorotannins are secondary metabolites produced by brown seaweeds with antiviral, antibacterial, antifungal, and larvicidal activities. Phlorotannins’ structures are formed by dibenzodioxin, ether and phenyl, ether, or phenyl linkages.
Bertoka Fajar Surya Perwira Negara   +3 more
doaj   +1 more source

Relative Toxicity of Leaf Extracts of Eucalyptus globulus and Centella asiatica against Mosquito Vectors Aedes aegypti and Anopheles stephensi [PDF]

open access: yes, 2014
The larvicidal activity of different solvent leaf extracts (hexane, diethyl ether, dichloromethane, and methanol) of Eucalyptus globulus and Centella asiatica against two geographically different strains of Aedes aegypti and Anopheles stephensi was ...
MartinezIbarra, J.A.   +3 more
core   +1 more source

Anthelmintic Activity of Hymenodictyon pachyanta Stem Bark Extracts against Haemonchus Contortus

open access: yesFolia Veterinaria, 2019
The development of host resistance to anthelmintics and the increasing cost of commercial anthelmintics have encouraged the need for the in vitro anthelmintic evaluation of crude extract and fractions of Hymenodictyon pachyanta plant as alternative drugs
Olayemi D. O.   +2 more
doaj   +1 more source

Synthesis of silver nanoparticle with Colocasia esculenta (L.) stem and its larvicidal activity against Culex quinquefasciatus and Chironomus sp

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2019
Objective: To synthesize silver nanoparticles with Colocasia esculenta as a reducing agent and to evaluate their effect against Culex quinquefasciatus and Chironomus sp. Methods: The aqueous extract of Colocasia esculenta stem was used for nanosynthesis.
Arghadip Mondal   +4 more
doaj   +1 more source

Dominant negative phenotype of Bacillus thuringiensis Cry1Ab, Cry11Aa and Cry4Ba mutants suggest hetero-oligomer formation among different Cry toxins. [PDF]

open access: yes, 2011
Background - Bacillus thuringiensis Cry toxins are used worldwide in the control of different insect pests important in agriculture or in human health. The Cry proteins are pore-forming toxins that affect the midgut cell of target insects.
Bakker, P.   +8 more
core   +4 more sources

AMIDES ISOLATED FROM THE LEAVES OF Piper tuberculatum Jacq. (Piperaceae) WITH ACETYLCHOLINESTERASE INHIBITION AND LARVICIDAL ACTIVITY AGAINST Aedes aegypti [PDF]

open access: yesQuímica Nova
Piper tuberculatum Jacq. is known to be a promising source of amides, which have shown remarkable biological activities. In this study, a phytochemical investigation of the leaves of P.
Brenda R. C. Leocadio   +10 more
doaj   +1 more source

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