Results 61 to 70 of about 7,153 (198)

Tissue culture of pyrethrum (Tanacetum cinerariifolium (Trevir.) Schultz Bip.)

open access: yesActa Biologica Slovenica, 2004
Pyrethrum (Tanacetum cinerariifolium), is plant species with the highest amount of natural insecticides - pyrethrins. An in-house information sys­ tem for the development of different plant tissue cultures and marketing of their products was designed ...
Mateja Gspan   +5 more
doaj   +1 more source

Inoculation and conservation of the biocontrol agent European earwig in Washington pear orchards

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 3, Page 246-259, March 2025.
European earwigs (Forficula auricularia sensu lato) (Dermaptera: Forficulidae) were collected in cardboard shelters and released in pear (Pyrus communis, Rosaceae) orchards for biocontrol of pear psylla (Cacopsylla pyricola; Hemiptera: Psyllidae). Earwigs failed to establish in commercial orchards using broad‐spectrum insecticides but increased in ...
Robert J. Orpet   +5 more
wiley   +1 more source

Partially substituting alfalfa hay with hemp forage promotes the health and well‐being of goats via altering ruminal and plasma metabolites and metabolic pathways

open access: yesAnimal Research and One Health, Volume 3, Issue 1, Page 82-101, February 2025.
Hemp forage (HF) seems to be a suitable forage for ruminants that exert health and growth promoting activities. The current study investigated the effects of substituting alfalfa hay with hemp forage (HF), which is high in nutritional value and rich in phytochemicals, on rumen and plasma metabolome using HPLC‐MS. The numbers of differential metabolites
Tao Ran   +7 more
wiley   +1 more source

Control of pear psylla: With oils and oil-pyrethrins

open access: yesCalifornia Agriculture, 1963
Oil sprays show promise for pear psylla control, but the addition of pyrethrins offers little advantage.
H Madsen, P Westigard
doaj  

Bedbugs (Cimicidae infestation): the worldwide renaissance of an old partner of human kind

open access: yesBrazilian Journal of Infectious Diseases
Bedbugs have been known as a human parasite for thousands of years, but scientific studies about this insect are recent and limited. Cimex lectularius, the common bedbug, was a well-known parasite in human dwellings until the end of the Second World War.
Paulo Ricardo Criado   +4 more
doaj   +1 more source

OPTICALLY ACTIVE CHRYSANTHEMIC ACID AND ITS ANALOGUES [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
Optically active chrysanthemic acid and its analogues have received considerable attention in recent years due to their practical importance. This review will focus on describing the developments in the synthesis of optically active chrysanthemic acid ...
L. Bets   +5 more
doaj  

Endogenous synthesis of pyrethrins by cannabis

open access: yesbioRxiv, 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
semanticscholar   +1 more source

Pyrethrins – secondary metabolites with insecticidal activity

open access: yesGlasnik Zaštite Bilja, 2023
Plants’ secondary metabolites have an important role in the plant’s response to abiotic and biotic stress. Some of the bioactive components have pronounced insecticidal properties, so they are called insecticidal plants such as Dalmatian (Tanacetum ...
Aleksandar Mešić   +1 more
doaj  

Efficient, Baseline Separation of Pyrethrins by Centrifugal PartitionChromatography

open access: yes, 2017
Pyrethrins are natural pesticides present in the oil extracted from the flowers of Chrysanthemum cinerariaefolium. They are potent ion-channel neurotoxins which have higher selective toxicity for insects compared to mammals.
A. Wong, J. Gliński
semanticscholar   +1 more source

Avaliação clínica do uso da decametrina no tratamento da pediculose do couro cabeludo A clinical evaluation of the use of decamethrin in the treatment of pediculus of the scalp

open access: yesRevista de Saúde Pública, 1985
A decametrina, um inseticida piretróide sintético, foi avaliada no tratamento da infestação por Pediculus humanus capitis em 54 crianças. Foi empregada emulsão a 0,0025 mg/ml da decametrina em tratamento tópico único ou repetido após 8 dias, se ainda ...
Newton Mamoru Sasaki   +1 more
doaj   +1 more source

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