Results 31 to 40 of about 12,174 (228)

Total Syntheses of All Six Chiral Natural Pyrethrins: Accurate Determination of the Physical Properties, Their Insecticidal Activities, and Evaluation of Synthetic Methods.

Journal of Organic Chemistry, 2020
Chiral total syntheses of all six insecticidal natural pyrethrins (three pyrethrin-I and three pyrethrin-II compounds) contained in the chrysanthemum (pyrethrum) flower were performed. Three common alcohol components [(S)-cinerolone, (S)-jasmololone, (S)-
Momoyo Kawamoto, Mizuki Moriyama, Yuichiro Ashida, N. Matsuo, Y. Tanabe   +4 more
semanticscholar   +1 more source

A Systematic Review of Mosquito Coils and Passive Emanators: Defining Recommendations for Spatial Repellency Testing Methodologies. [PDF]

, 2012
Mosquito coils, vaporizer mats and emanators confer protection against mosquito bites through the spatial action of emanated vapor or airborne pyrethroid particles.
A Liberati, A Smith, A Smith, Bill and Melinda Gates Foundation and Boston Consulting Group, BM Bolker, BT Argueta, C McMahon, DD Amalraj, DR Roberts, DR Roberts, EJ Hoffmann, EJ Hudson, GB White, GV Dethier, H Hao, H Kawada, H Kawada, H Kawada, H Ranson, J Brady, JD Bohbot, JD Bohbot, JE Miller, JP Grieco, JR Lucas, JR Miller, JS Kennedy, JT Griffin, KF Haynes, LB Browne, LF Chaves, LN Achee, M Reddy, Marta F Maia, ME Adams, MH Birley, MT Gillies, PR Chadwick, PY Siegert, R Pal, RA Wirtz, RW Mukabana, RW Steketee, S Sadasivaiah, Sarah J Moore, Sheila B Ogoma, SJ Moore, SW Lindsay, T Malera, T Smyth, T Yamaguchi, UB Kaupp, WF Mosha, WF Mosha, WHO, WHOPES, WK Liu, Y Katsuda   +57 more
core   +4 more sources

Control of Scaphoideus titanus with Natural Products in Organic Vineyards

Insects, 2017
The leafhopper Scaphoideus titanus is the vector of ‘Candidatus Phytoplasma vitis’, the causal agent of Flavescence dorée (FD) a key disease for European viticulture. In organic vineyards, the control of S.
Federico Tacoli, Nicola Mori, Alberto Pozzebon, Elena Cargnus, Sarah Da Vià, Pietro Zandigiacomo, Carlo Duso, Francesco Pavan   +7 more
doaj   +1 more source

Do topical repellents divert mosquitoes within a community? Health equity implications of topical repellents as a mosquito bite prevention tool. [PDF]

, 2013
OBJECTIVES: Repellents do not kill mosquitoes--they simply reduce human-vector contact. Thus it is possible that individuals who do not use repellents but dwell close to repellent users experience more bites than otherwise.
DC Chavasse, Elizabeth Louise Turner, Emmanuel Titus Simfukwe, GF Killeen, JA Scott, John Vontas, LW Cohnstaedt, M Ditzen, M Rowland, Marta Ferreira Maia, Max Thele, MF Maia, N Hill, RW Steketee, Sangoro Peter Onyango, Sarah Jane Moore, SE Clarke, SJ Moore, SJ Moore, SP Carroll, SW Lindsay, TW Scott, Y Geissbühler   +22 more
core   +3 more sources

Spinosad and Mixtures of an Entomopathogenic Fungus and Pyrethrins for Control of Sitona lineatus (Coleoptera: Curculionidae) in Field Peas

Journal of Economic Entomology, 2020
The pea leaf weevil, Sitona lineatus L., is an important pest of field peas and faba beans in most temperate regions. As no information is currently available on efficacy of biopesticides for S.
G. Shrestha, Sindhura Mettupalli, R. Gadi, Debra A Miller, G. Reddy   +4 more
semanticscholar   +1 more source

Controlling Scaphoideus titanus with kaolin? Summary of four years of field trials in Switzerland

OENO One, 2023
Flavescence dorée is a quarantine phytoplasma-borne disease transmitted primarily by the leafhopper Scaphoideus titanus. When S. titanus and Flavescence dorée are present in the same vineyard, the vector has to be controlled mandatory with insecticides ...
Christian Linder, Michel Jeanrenaud, Patrik Kehrli   +2 more
doaj   +1 more source

Present and future potential of plant-derived products to control arthropods of veterinary and medical significance [PDF]

, 2014
The use of synthetic pesticides and repellents to target pests of veterinary and medical significance is becoming increasingly problematic. One alternative approach employs the bioactive attributes of plant-derived products (PDPs). These are particularly
Finn, Robert, George, David, Graham, Kirsty, Sparagano, Olivier   +3 more
core   +1 more source

A Trichome-Specific, Plastid-Localized Tanacetum cinerariifolium Nudix Protein Hydrolyzes the Natural Pyrethrin Pesticide Biosynthetic Intermediate trans-Chrysanthemyl Diphosphate

Frontiers in Plant Science, 2020
Tanacetum cinerariifolium flowers synthesize six pyrethrins that function as effective insecticides. trans-Chrysanthemol is an early intermediate in the synthesis of the monoterpene moiety of pyrethrins.
Wei Li, Wei Li, Daniel B. Lybrand, Haiyang Xu, Haiyang Xu, Fei Zhou, Robert L. Last, Robert L. Last, Eran Pichersky   +8 more
doaj   +1 more source

Epidemiology and management of flower diseases of pyrethrum [PDF]

, 1992
Pyrethrum (Tanacatum cinerariifolium) is cultivated worldwide and in southern Australia for the extraction of insecticidal esters or pyrethrins contained within the achenes of flowers. Producing a significant proportion of the worlds botanical pyrethrins,
Ferreira, Goto, Gratton, Harschlag, Haugland, Karplus, Koshland, Levashov, Lumry, Luscher, Rupley, Schonbaum, Zaks   +12 more
core   +2 more sources

A Child with Severe Paraesthesia due to Pyrethroid Exposure: Successful Treatment with Topical Vitamin E

Journal of Pediatric Emergency and Intensive Care Medicine, 2020
Pyrethroids are one of the most common insecticides and have been known as safe household insecticides. They are highly toxic for insects whereas they are low in toxicity for mammals.
Aykut Çağlar, Anıl Er, Emel Ulusoy, Fatma Akgül, Dorukhan Besin, Hurşit Apa   +5 more
doaj   +1 more source