Results 31 to 40 of about 881 (172)
Agronomy, 2022 According to the European Directive 2009/128/EC and the subsequent provisions activated in member states, conventional pesticides should be progressively replaced by “non-chemical tools and/or measures”.
Carlo Duso +6 more
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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 +2 more
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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 +8 more
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EFFECTIVNESS OF PURE DIATOMACEUS EARTH AND DIFFERENT MIXTURES OF DIATOMACEUS EARTH WITH PYRETHRINS [PDF]
Poljoprivreda, 2011 This study shows results of laboratory experiments on stored soft white wheat infested with two stored pest species: rice weevil - Sitophilus oryzae (L.), and red flour beetle - Tribolium castaneum (Herbst), treated with different mixtures of Diatomaceus
Irma Kalinović +3 more
doaj
Tests of synergism between nicotine and the pyrethrins
, 1953 Synergism between nicotine and pyrethrum applied by injection to adult Oncopeltus fasciatus Dal. has been reported by Turner (1951). When these insecticides were applied alone and as a mixture to adult Tribolium castaneum Hbst., using a dipping ...
Bliss, C. I., Turner, N.
core +1 more source
Reduction Chemistry of Natural Pyrethrins and Preliminary Insecticidal Activity of Reduced Pyrethrins [PDF]
Australian Journal of Chemistry, 2020 The natural extract pyrethrum is an insecticidal oil derived from Tanacetum cinerariifolium that is commonly used in domestic and agricultural pesticides. The major constituents of the extract are the Pyrethrins, six esters that provide pyrethrum with its insecticidal properties.
Todd E. Markham +3 more
openaire +3 more sources
Biomédica: revista del Instituto Nacional de Salud, 2007 Introducción. La evaluación de la susceptibilidad a insecticidas de las diferentes especies de triatominos, involucrados en la transmisión de la enfermedad de Chagas de cada región, es indispensable para el éxito de las campañas de control.
Marlene Reyes +2 more
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, 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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Four undescribed pyrethrins from seeds of Pyrethrum cinerariifolium and their aphidicidal activity
Natural Products and Bioprospecting, 2023 Four undescribed pyrethrins C-F (1–4) as well as four known pyrethrins (5–8) were isolated from seeds of Pyrethrum cinerariifolium Trev. The structures of compounds 1–4 were elucidated by UV, HRESIMS, and NMR (1H and 13C NMR, 1H-1H COSY, HSQC, HMBC and ...
Hao-Ran Zhou +4 more
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