Results 61 to 70 of about 15,107 (265)

Alternative protection of potatoes in organic farming [PDF]

open access: yes, 2009
There were tested water extracts from Syringa vulgaris and Pyrethrum parthenium. They did not prove signincant differences ofdecrease of the air attack ofColorado potato beetle (Leptinotarsa decemlineata), the activity ofeggs -laying and the occurrence ...
Dvorak, Petr, Tomasek, Jaroslav
core  

Effects of autumn kaolin, pyrethrin, and ladybird larvae (Adalia bipunctata) applications on the spring populations of the rosy apple aphid (Dysaphis plantaginea) in an on-farm apple orchard (cv. Topaz) [PDF]

open access: yes, 2003
Effects of different strategies (insecticide treatment, physical barrier, biocontrol) to control autumn forms of Dysaphis plantaginea. Question 1: Efficacy of pyrethrum, kaolin, and larvae of A. bipunctata to control Dysaphis plantaginea.
Daniel, Claudia, Wyss, Eric
core  

Comprehensive Analysis of the Impact of Climate Change and Human Activities on the Distribution of Five Fritillaria Species Using the Optimized Maxent Model

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
This study utilized extensive specimen data and detailed geographic and environmental information, applying the Maxent model to predict the distribution of F. cirrhosae bulbus. The key findings are as follows: (1) F. przewalskii and F. delavayi tend to migrate to higher altitudes, while F. taipaiensis is shifting to lower altitudes. (2) Among different
Yuanyuan Li   +7 more
wiley   +1 more source

Implications of genetic variation within pyrethrum (Chrysanthemum cinerariifolium and Chrysanthemum coccineum) germplasm: Intra‐ or inter‐specific hybridization as mechanisms to circumvent genetic bottlenecks

open access: yesCrop Science, Volume 65, Issue 3, May/June 2025.
Abstract The University of Minnesota (UMN) Pyrethrum Breeding Program has been developing Chrysanthemum cinerariifolium with increased levels of Pyrethrin I/Pyrethrin II ratio (%Py) for over a decade. Pyrethrum is an economically important “green pesticide,” producing %Py in glandular trichomes, with the highest concentration in the flowers.
Liesl Bower‐Jernigan   +4 more
wiley   +1 more source

Phytochemistry, Biological and Pharmacological Activities of the Anacyclus pyrethrum (L.) Lag: A Systematic Review

open access: yesPlants, 2022
Anacyclus pyrethrum (L.) (Asteraceae) is an important annual medicinal herb and is widespread in Morocco and Algeria. Most of its parts are used in traditional medicine and the roots are the most important parts used.
Hanane Elazzouzi   +9 more
doaj   +1 more source

Survey on the control methods of Bactrocera oleae (Gmelin) in organic olive groves producing oil and table olives in Sicily [PDF]

open access: yes, 2006
In Sicily there are several organic farms producing olive oil and the number of farms has grown in the last years. The control methods of Bactrocera oleae (Gmelin) used by Sicilian organic farms were surveyed in 2004 and 2005.
Battaglia, Isabella   +3 more
core  

The untapped potential of plant thin cell layers [PDF]

open access: yes, 2015
Thin cell layers (TCLs), which contain a small number of cells or tissues, are explants excised from different organs (stems, leaves, roots, inflorescences, flowers, cotyledons, hypocotyls/epicotyls, and embryos).
Botero Giraldo   +15 more
core   +1 more source

Pairing Residual Contact Insecticide Use With Long‐Lasting Insecticide‐Incorporated Netting to Reduce Dispersal and Damage by Stored Product Insects

open access: yesJournal of Applied Entomology, Volume 149, Issue 4, Page 501-514, May 2025.
ABSTRACT Long‐lasting insecticide‐incorporated netting (LLIN) can intercept insects and has shown promise for pest management before and after harvest in agriculture. Understanding how to incorporate LLIN into existing integrated pest management (IPM) programs, with other commonly used tactics like residual contact insecticides, can significantly ...
Sabita Ranabhat   +7 more
wiley   +1 more source

Genomic Analysis Reveals a New Cryptic Taxon Within the Anopheles gambiae Complex With a Distinct Insecticide Resistance Profile in the Coast of East Africa

open access: yesMolecular Ecology, Volume 34, Issue 10, May 2025.
ABSTRACT Anopheles mosquitoes are major malaria vectors, encompassing several species complexes with diverse life histories, transmission risks and insecticide resistance profiles that challenge malaria control efforts. This study investigated the genetic structure and insecticide resistance profiles of Anopheles gambiae complex mosquitoes in Tanzania.
Sophia H. Mwinyi   +11 more
wiley   +1 more source

Effect of fire timing on the regeneration capacity of Helichrysum species in Tanzania

open access: yesEcological Solutions and Evidence, Volume 6, Issue 2, April–June 2025.
Shrub encroachment poses a significant challenge in many grassland ecosystems, particularly where disturbances such as heavy livestock grazing and uncontrolled fires are prevalent. The study investigated resprouting ability of Helichrysum shrubs after being completely, partially or not at all burned.
Christopher A. Mgimba   +2 more
wiley   +1 more source

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