Results 11 to 20 of about 18,521 (227)

Larvicidal Activities against Aedes aegypti of Supernatant and Pellet Fractions from Cultured Bacillus spp. Isolated from Amazonian Microenvironments

open access: yesTropical Medicine and Infectious Disease, 2021
The Aedes aegypti mosquito is the primary vector of Dengue, Chikungunya and Zika causing major problems for public health, which requires new strategies for its control, like the use of entomopathogenic microorganisms.
Ricardo M. Katak   +12 more
doaj   +1 more source

Synthesis and Larvicidal Activity of Novel Thenoylhydrazide Derivatives [PDF]

open access: yesScientific Reports, 2016
AbstractA pair of chemical isomeric structures of novel N-tert-butylphenyl thenoylhydrazide compounds I and II were designed and synthesized. Their structures were characterized by MS, IR, 1H NMR, elemental analysis and X-ray single crystal diffraction.
Gaopeng Song   +6 more
openaire   +2 more sources

Novel Sophoridine Derivatives as Potential Larvicidal Agents against Aedes albopictus: Synthesis, Biological Evaluation, Acetylcholinesterase Inhibition, and Morphological Study

open access: yesInsects, 2023
Two series of novel sophoridine derivatives were designed, synthesized, and evaluated for their anti-mosquito activity. SOP-2g, SOP-2q, and SOP-2r exhibited potential larvicidal activity against Aedes albopictus larva with LC50 values of 330.98, 430.53 ...
Song Ang   +10 more
doaj   +1 more source

Larvicidal activity of the methanol extract and fractions of the green fruits of Solanum lycocarpum (Solanaceae) against the vector Culex quinquefasciatus (Diptera: Culicidae)

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2014
Introduction The larvicidal activity of Solanum lycocarpum against Culex quinquefasciatus is unknown. Methods We evaluated the larvicidal activity of extracts of the green fruits of Solanum lycocarpum against third and fourth instar larvae of C ...
Thamer Matias Pereira   +4 more
doaj   +1 more source

Investigations on Tuta absoluta (Lepidoptera: Gelechiidae): larval infestation on the tomato cultivated in open field and evaluation of five essential oils against larvae in laboratory [PDF]

open access: yes, 2019
The tomato miner Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is a Neotropical species, which cause serious damages to tomato in spread areas. It appeared in 2008 in Italy, where it seriously threatened tomato production both in greenhouse and open ...
Alfonso Agrò   +2 more
core   +1 more source

Larvicidal activity of oils, fatty acids, and methyl esters from ripe and unripe fruit of Solanum lycocarpum (Solanaceae) against the vector Culex quinquefasciatus (Diptera: Culicidae)

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2015
INTRODUCTION:The larvicidal activity of oils, fatty acids, and methyl esters of Solanum lycocarpum fruit against Culex quinquefasciatus is unknown.METHODS:The larvicidal activity of samples of ripe and unripe fruit from S.
Viviane de Cássia Bicalho Silva   +3 more
doaj   +1 more source

Variation in the susceptibility of Anopheles gambiae to botanicals across a metropolitan region of Nigeria [PDF]

open access: yes, 2019
Pesticide resistance is normally associated with genetic changes, resulting in varied responses to insecticides between different populations. There is little evidence of resistance to plant allelochemicals; it is likely that their efficacy varies ...
Callaghan, Amanda   +3 more
core   +2 more sources

Larvicidal Activity of Grandisin Against Aedes aegypti

open access: yesJournal of the American Mosquito Control Association, 2009
Dengue is a tropical disease caused by an arbovirus transmitted by the mosquito Aedes aegypti. Because no effective vaccine is available for the disease, the strategy for its prevention has focused on vector control by the use of natural insecticides. The aim of this study was to evaluate the larvicidal activity of the lignan grandisin, a leaf extract ...
Marise M O, Cabral   +3 more
openaire   +2 more sources

Antifungal and Larvicidal Activities of Phlorotannins from Brown Seaweeds [PDF]

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. The polymerization of phlorotannins is used to classify and characterize.
Bertoka Fajar Surya Perwira Negara   +3 more
openaire   +3 more sources

Bioefficacy of flindersine against Helicoverpa armigera Hübner, Spodoptera litura Fabricius, Anopheles stephensis Liston. and Culex quinquefasciatus Say.

open access: yesBrazilian Archives of Biology and Technology, 2015
Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura and larvicidal activity against vector mosquitoes Anopheles ...
Veeramuthu Duraipandiyan   +4 more
doaj   +1 more source

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