Results 51 to 60 of about 6,694 (193)
, 1961 The infra‐red spectra of the pyrethrins and of other compounds found with them in pyrethrum extract are presented and discussed. The spectra of the four insecticidal esters are interpreted in terms of those of the acids and alcohols from which they are ...
Elliott, M.
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Conclusion on the peer review of the pesticide risk assessment of the active substance pyrethrins [PDF]
EFSA Journal, 2013 The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authority of the rapporteur Member State Italy, for the pesticide active substance pyrethrins are reported.
European Food Safety Authority
doaj +1 more source
DDT, pyrethrins, pyrethroids and insect sodium channels
, 2007 The long term use of many insecticides is continually threatened by the ability of insects to evolve resistance mechanisms that render the chemicals ineffective.
Field, L. M. +3 more
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Trichomes in Plant Defence, Development and Metabolic Integration Under Environmental Stress
Plant, Cell &Environment, EarlyView.ABSTRACT Among various plant defence strategies, trichomes are tiny hair‐like structures on the epidermis that aid in defence, environmental adaptation and the production of valuable secondary metabolites. This review features trichomes as frontline guards for plant survival, integrating their structural, physiological and metabolic roles in ...
Debdatta Chatterjee +5 more
wiley +1 more source
Pyrethrins protect pyrethrum leaves against attack by western flower thrips, Frankliniella occidentalis [PDF]
, 2012 Pyrethrins are active ingredients extracted from pyrethrum flowers (Tanacetum cinerariifolium), and are the most widely used botanical insecticide. However, several thrips species are commonly found on pyrethrum flowers in the field, and are the dominant
Marcel Dicke +13 more
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Endogenous synthesis of pyrethrins by cannabis
, 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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, 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.
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Horticulturae, 2023 Among factors affecting snap bean production in organic growing systems, pests and diseases are of paramount importance. The current study was aimed to determine the impact of organic production practices on snap bean pests and diseases infestation, soil
Vinelina Yankova +5 more
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Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 5, September 2026.ABSTRACT Vegetables anchor healthy‐diet recommendations yet are the principal nonoccupational route by which residues of organophosphate (OP), pyrethroid, neonicotinoid, organochlorine (OC), and glyphosate herbicide enter the diet, with the gut microbiota a plausible mediator linking these residues to functional gastrointestinal (GI) and inflammatory ...
Chengqian Ye +3 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
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