Results 41 to 50 of about 4,466 (159)

Pyrethrins – secondary metabolites with insecticidal activity

Glasnik Zaštite Bilja, 2023
Plants’ secondary metabolites have an important role in the plant’s response to abiotic and biotic stress. Some of the bioactive components have pronounced insecticidal properties, so they are called insecticidal plants such as Dalmatian (Tanacetum ...
Aleksandar Mešić, Anamarija Bokulić Petrić   +1 more
doaj  

Avaliação clínica do uso da decametrina no tratamento da pediculose do couro cabeludo A clinical evaluation of the use of decamethrin in the treatment of pediculus of the scalp

Revista de Saúde Pública, 1985
A decametrina, um inseticida piretróide sintético, foi avaliada no tratamento da infestação por Pediculus humanus capitis em 54 crianças. Foi empregada emulsão a 0,0025 mg/ml da decametrina em tratamento tópico único ou repetido após 8 dias, se ainda ...
Newton Mamoru Sasaki, José Rubens Barbosa Cortez   +1 more
doaj   +1 more source

The metabolic fate of pyrethrin I, pyrethrin II, and allethrin.

Bulletin of the World Health Organization, 1971
By the administration of radioactively labelled compounds, the metabolic products of pyrethrin I, pyrethrin II, and allethrin in the rat have been identified. This paper describes the structures of the metabolites.
I, Yamamoto, M, Elliott, J E, Casida
openaire   +1 more source

Bedbugs (Cimicidae infestation): the worldwide renaissance of an old partner of human kind

Brazilian Journal of Infectious Diseases, 2011
Bedbugs have been known as a human parasite for thousands of years, but scientific studies about this insect are recent and limited. Cimex lectularius, the common bedbug, was a well-known parasite in human dwellings until the end of the Second World War.
Paulo Ricardo Criado, PhD, Walter Belda Junior, Roberta Fachini Jardim Criado, Master's Degree, Roberta Vasconcelos e Silva, Dermatology; Post- Graduation, Cidia Vasconcellos, Post-Doctorade   +4 more
doaj   +1 more source

EFFECTIVENESS OF SELECTED PRODUCTS AGAINST BLACK CHERRY APHID [HODNOCENÍ ÚČINNOSTI VYBRANÝCH PŘÍPRAVKŮ NA MŠICI TŘEŠŇOVOU] [PDF]

Vědecké Práce Ovocnářské
The presented study outlines the results of laboratory and semi-field trials focused on evaluating the effectiveness of selected plant protection products against the black cherry aphid (Myzus cerasi).
Michal Skalský, Jana Ouředníčková
doaj   +1 more source

Upregulation of Metabolic Defense System After Short-term Exposure to Formulated Insecticide [PDF]

Caspian Journal of Neurological Sciences
Background: The rising use of formulated insecticides called for an evaluation of their effects on the substantia nigra defensive mechanisms to identify potential therapeutic windows.
Princewill Sopuluchukwu Udodi, Oluoma Vivian Aneke, Roseline Ebube Udodi   +2 more
doaj  

Using amplicon sequencing in an ecotoxicological context: Applying species sensitivity distributions to assess the toxicity of biopesticides and a synthetic pesticide on soil microbiota

Ecotoxicology and Environmental Safety
Biopesticides are gaining popularity due to their perceived environmental safety. However, their natural biocidal properties may still pose risks to soil microbial communities.
Alexandre Pedrinho, Alexandros Kanellopoulos, Panagiotis A. Karas, Ofir Ramot, Sotirios Vasileiadis, Dimitrios G. Karpouzas   +5 more
doaj   +1 more source

Chromatographic separation of the pyrethrins

Journal of the Science of Food and Agriculture, 1952
Abstract‘Pyrethrins’ I and II have been separated on both alumina and silica columns. On alumina columns there is some evidence of the separation of the cinerins from the pyrethrins.Material separated in this way has been used to elucidate separations obtained by chromatography of pyrethrum extracts on paper impregnated with alumina and by paper ...
Lord, K. A., Ward, J., Cornelius, J. A., Jarvis, M. W.   +3 more
openaire   +1 more source

Bovine biowaste derived nanocellulose for pyrethrin stabilization and controlled release

Discover Materials
Sustainable industrial and food production technologies are in demand with the heightened public environmental consciousness. For example, there is growing demand for organic agriculture where synthetic pesticides are replaced with biopesticides.
Samuel M. Mugo, Weihao Lu
doaj   +1 more source

Assessment of Pyrethrin Novel Green Extraction Methods from Dalmatian Pyrethrum (Tanacetum cinerariifolium)

Applied Sciences
Six novel green extraction techniques were evaluated and optimized to extract pyrethrin from dried Dalmatian pyrethrum (Tanacetum cinerariifolium (Trevir./Sch.Bip.).
Jasna Maršić-Lučić, Stela Jokić, Maja Molnar, Martina Jakovljević Kovač, Marija Banožić, Jerko Hrabar, Ivona Mladineo   +6 more
doaj   +1 more source