Search results for " Pest Management"
showing 4 items of 54 documents
DIVERSITE GENETIQUE ET PHENOLOGIE DE CYPERUS ESCULENTUS L. (CYPERACEAE) POUR UNE GESTION INTEGREE DE L'ESPECE DANS LES CULTURES DE HAUTE LANDE
2006
We studied the development, phenology, demography and genetic diversity of Cyperus esculentus (Cyperaceae), an invasive clonal perennial weed in the small-statured crops of Haute Lande, southwestern France. The goal was to understand its colonizing capacity and then make propositions for an integrated management of the species.The colonizing capacity of C. esculentus is linked to the huge subterranean vegetative development, with both foraging thanks to rhizomes and multiplication thanks to tubers. On the other hand, the local crop systems provide all the needs of the species: water, light and nutriments without competition by other weeds. Genetic analyses showed a low genetic diversity and…
Conception et évaluation de systèmes de culture innovants : le cas exemplaire de la Protection Intégrée contre la flore adventice
2009
Pas de résumé
IPMWORKS, a European network of pionneer farmers engaged to demonstrate cost-effective IPM-based strategies with low pesticide use
2022
Integrated Pest Management (IPM) is based on a diversity of pest management measures(prevention, non-chemical control, best practices for optimizing pesticide efficiency, etc.).These are combined at the farm level to enable reduced reliance on pesticides, and thereforea decrease in the exposure of the environment and people to pesticides. Rare pioneer farmersthroughout Europe are testing such IPM strategies and are succeeding in achieving goodoutcomes with low pesticide inputs. However the majority of European farmers still relyheavily on pesticides, with major environmental and societal impacts, because most of themhave not adopted a comprehensive, farm-level and holistic IPM strategy so f…
Acaricidal Activity of Bufadienolides Isolated from Drimia pancration against Tetranychus urticae, and Structural Elucidation of Arenobufagin-3-O-α-L…
2022
Chemical characterization of the bulbs of Drimia pancration was conducted to isolate four steroidal saponins (1–4). Earlier, we focused on the structural elucidation of compounds 1–3. Herein, by means of 1H-NMR, 13C-NMR, Nuclear Overhauser Effects (NOE), and 2D-NMR spectra, the full stereochemical structure of 4 is reported, and all the 1H and 13C signals are assigned. Compounds 1–4 were tested for their acaricidal properties against the two-spotted spider mite Tetranychus urticae. Our results showed excellent activity of compound 1, with an LD50 (µg/cm2) of 0.29 and a LD90 (µg/cm2) of 0.96, whereas compounds 2, 3, and 4 showed moderate activity. Furthermore, t…