Results 51 to 60 of about 5,073 (214)
The effect of environmental conditions upon pyrethrum (chrysanthemum cinerariaefolium). II
, 1934 The effects of light, temperature and dormancy upon pyrethrum have been studied. The partial shading of the plant during the five months preceding flowering resulted in the production of smaller flowers with a reduced pyrethrin content.
Martin, J. T., Tattersfield, F.
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Plant Protection Science, 2016 Botanical insecticides keep attracting more attention from environmental and small farmers worldwide as they are considered as a suitable alternative to synthetic insecticides.
Roman PAVELA
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Agronomy, 2022 Pyrethrum is a perennial herbaceous plant endemic to the eastern coast of the Adriatic Sea, and introduced in large areas of nearly all continents, where it is cultivated for the industrial extraction of pyrethrins.
Caterina Catalano +6 more
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, 2015 Carpogenic germination of sclerotia and infection of flowers by ascospores of Sclerotinia minor is rare and seldom documented in most hosts. During 2007-2009, S. minor isolates were obtained from surface-sterilized pyrethrum flowers collected from fields
Hay, Frank S. +5 more
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, 2011 BACKGROUND: A study was undertaken to determine the efficacy of seven natural compounds compared with piperonyl butoxide (PBO) in synergising pyrethrum, with the intention of formulating an effective natural synergist with pyrethrum for use in the ...
Moores, G. D. +13 more
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Pesticide use in integrated pest and pollinator management framework to protect pollinator health
Pest Management Science, Volume 81, Issue 4, Page 1691-1696, April 2025.Integrated pest management (IPM) emphasizes non‐chemical methods, with pesticides as a last resort, while integrated pest and pollinator management (IPPM) integrates pollinator health into pest control strategies. Abstract Agricultural pesticides have historically been a critical tool in controlling pests and diseases, preventing widespread suffering ...
Ngoc T Phan +6 more
wiley +1 more source
Pyrethrum and the Second World War: Recontextualising DDT in the Narrative of Wartime Insect Control
HoST, 2022 Historians have long recognised that DDT’s fame began with extraordinary propaganda late in the Second World War, yet heroic narratives that centre the chemical still shape historical understanding.
Clarke Sabine, Brown Richard J. E.
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Journal of the Science of Food and Agriculture, Volume 106, Issue 10, Page 5881-5889, 15 August 2026.Abstract BACKGROUND The control of fungal diseases in organic fruit production remains a major challenge due to the limited availability of authorized phytosanitary tools. This study evaluates the efficacy of two antagonistic yeasts – Metschnikowia pulcherrima L672 and Hanseniaspora uvarum L793 – in organic peach ( Prunus persica ) and plum ( Prunus ...
Paula Tejero +5 more
wiley +1 more source
Engineering Reports, Volume 8, Issue 6, June 2026.Conservation practices in an East African catchment dramatically cut sediment (80%) and phosphorus (76%) loads but are markedly less effective on nitrogen (8% reduction) due to legacy groundwater nitrate, revealing a critical trade‐off between water quality and quantity.
Josué Simbo
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Arthropods obtained from the Amazonian tree species "Cupiuba" (Goupia glabra) by repeated canopy fogging with natural Pyrethrum [PDF]
Acta Amazonica, 1998 Two canopies of a widely distributed Amazonian tree species, Goupia glabra Aubl. (Celastraceae, height 38 and 45m) were fogged several times with 1% natural pyrethrum during the rainy and dry seasons (1991-1994) in the Adolpho Ducke Forest Reserve near ...
Joachim ADIS +4 more
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