Results 41 to 50 of about 5,248 (212)
Endogenous synthesis of pyrethrins by cannabis [PDF]
, 2017 Pyrethrins are a class of natural terpenoid pesticides produced by Tanacetum cinerariifolium, commonly known as chrysanthemum. Here we present evidence that cannabis may be able to produce pyrethrins endogenously.
Adrian Devitt-Lee +5 more
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Journal of Nanobiotechnology, 2022 Background Pine wilt disease as a devastating forest disaster result from Bursaphelenchus xylophilus that spread by stem-borers Monochamus alternatus feeding on pine leaves, which has brought inestimable economic losses to the world's forestry due to ...
Yanxue Liu +9 more
doaj +1 more source
The pyrethrins and related compounds. Part XI. Synthesis of insecticidal esters of 4-hydroxycyclopent-2-enones (nor-rethrins) [PDF]
, 1971 2-Benzylcyclopent-2-enones, obtained by rearrangement of the corresponding benzylidenecyclopentanones, are brominated by -bromosuccinimide at the 4-position; the products upon treatment with silver chrysanthemate give new analogues of the natural ...
Elliott, M., Payne, M. C., Janes, N. F.
core +1 more source
Photostability assessment of natural pyrethrins using halloysite nanotube carrier system [PDF]
, 2022 Natural pyrethrins are one of the most used pesticides and insect repellents employed for domestic or agronomic use. However, they are highly hydrophobic and suffer from insolubility in water media and ready decomposition by photochemical, and ...
S. Francati +9 more
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Pyrethrins In Soil and Water From Selected Pyrethrum Growing Areas In Nakuru County, Kenya [PDF]
, 2020 Introduction: Pyrethrum also known as Chrysanthemum is a plant from which compounds known as pyrethrins are derived. The pyrethrins have been used for many years as insecticides.
Kigondu, Elizabeth V. Mumbi +7 more
core +2 more sources
Antiplasmodial and Antitrypanosomal Activity of Pyrethrins and Pyrethroids [PDF]
, 2016 In a screen of 1800 plant and fungal extracts for antiplasmodial, antitrypanosomal, and leishmanicidal activity, the n-hexane extract of Chrysanthemum cinerariifolium (Trevir.) Vis. flowers showed strong activity against Plasmodium falciparum.
Marcel Kaiser (41510) +5 more
core +1 more source
Borylcyclopropanes: Synthetic Strategies and Applications
Angewandte Chemie International Edition, EarlyView.Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley +1 more source
Pest Management Science, EarlyView.Anopheles gambiae mosquitoes exhibit takeoff responses when presented to commercial permethrin headspace. This product elicits electrophysiological activity in the antennae and tarsi. However, only the chemical information acquired from the tarsi plays a major role in the observed behavioral response.
Sassan S Kambou +4 more
wiley +1 more source
Modelling the phenology of the grapevine leafhopper Erasmoneura vulnerata
Pest Management Science, EarlyView.This study developed and validated a phenological population dynamics model for Erasmoneura vulnerata, integrating field monitoring and literature data to reproduce observed seasonal patterns across multiple sites. Abstract BACKGROUND Erasmoneura vulnerata (Fitch) (Hemiptera: Cicadellidae) is an invasive Nearctic leafhopper that has become a pest of ...
Andrea De Francesco +5 more
wiley +1 more source
Loss of Pyrethrins Content during Drying of Chrysanthemum cinerariifolium Flowers in Direct Sunlight [PDF]
, 2021 Pyrethrins are organic compounds derived from the flowers of Chrysanthemum cinerariifolium for their insecticidal activities. Pyrethrins I and Pyrethrins II are the two main classes in which Pyrethrins are grouped.
Kariuki, David; Department of Chemistry, University of Nairobi +2 more
core +1 more source