Results 81 to 90 of about 881 (172)

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

Brazilian Journal of Infectious Diseases
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, Walter Belda Junior, Roberta Fachini Jardim Criado, Roberta Vasconcelos e Silva, Cidia Vasconcellos   +4 more
doaj   +1 more source

OPTICALLY ACTIVE CHRYSANTHEMIC ACID AND ITS ANALOGUES [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
Optically active chrysanthemic acid and its analogues have received considerable attention in recent years due to their practical importance. This review will focus on describing the developments in the synthesis of optically active chrysanthemic acid ...
L. Bets, Z. Ribkovskaia, L. Vlad, S. Pogrebnoi, F. Galin, F. Macaev   +5 more
doaj  

Supercritical CO2 processing strategies for pyrethrins selective extraction

, 2017
The extraction of pyrethrins from chrysanthemum flowers has been performed using supercritical CO2 (SC-CO2) extraction coupled to fractional separation, with the aim of producing complete and selective extraction of these insecticidal principles. 90 bar,
Giovanna Della Porta, Ernesto Reverchon, Lucia Baldino, Reverchon, Ernesto, Baldino, Lucia, Della Porta, Giovanna   +5 more
core   +1 more source

Suicide after inhaling a pyrethrins containing insecticide spray

, 2019
Pesticide self-poisoning is rare in developed countries. We report a suicide case after inhalation of a pyrethrins containing insecticide spray. The patient presented at the emergency department with respiratory failure.
Bersselaar, L.R. van den, Jong, B. De, Hoeven, J.G. van der   +2 more
core   +1 more source

The Effects of Natural Insecticides on the Green Peach Aphid Myzus persicae (Sulzer) and Its Natural Enemies Propylea quatuordecimpunctata (L.) and Aphidius colemani Viereck

Insects
Botanical insecticides and soaps are frequently proposed as environmentally safer alternatives to synthetic insecticides. However, the efficacy and selectivity of these products are often only partially supported by empirical evidence.
Francesco Lami, Giovanni Burgio, Serena Magagnoli, Laura Depalo, Alberto Lanzoni, Elettra Frassineti, Ilaria Marotti, Mattia Alpi, Dario Mercatante, Maria Teresa Rodriguez-Estrada, Giovanni Dinelli, Antonio Masetti   +11 more
doaj   +1 more source

Potential of piperonyl butoxide‐synergised pyrethrins against psocids (Psocoptera: Liposcelididae) for stored‐grain protection

, 2010
BACKGROUND: Piperonyl butoxide (PB)-synergised natural pyrethrins (pyrethrin:PB ratio 1:4) were evaluated both as a grain protectant and a disinfestant against four Liposcelidid psocids: Liposcelis bostrychophila Badonnel, L.
Manoj K Nayak, Nayak, Manoj K.
core   +1 more source

The Pharmacokinetics of Pyrethrins in Lactating and Non-LactatingEwes After Oral and Subcutaneous Administration

, 2010
Pyrethrins were administered orally and subcutaneously (SC) at 150 mg/kg body weight to 10 lactating and nonlactating ewes in a cross over experimental design.
Mitema, ES, Maitho, TE, JM Mbaria, ES Mitema, TE Maitho, Mbaria, JM   +5 more
core   +1 more source

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

Bioefficacy of pyrethrins extracted from callus tissues of Chrysanthemum cinerariaefolium.

, 1991
Pyrethrins extracted from cultured leaf calluses of Chrysanthemum cinerariaefolium [Tanacetum cinerariifolium] were applied topically to adults of Drosophila melanogaster.
Rajendran, L, Venkataraman, L V, Ravishankar, G. A., Rajasekaran, T   +3 more
core  

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