We report the results of 4 field trials carried out in Trentino in the three-year period 2020- 2022 in order to evaluate the efficacy and selectivity of a new herbicide formulation, Ripper®, based on pyraflufen-ethyl + clethodim on apple trees. The product, a mixture of two already known and characterized herbicides, was included in different strategies with active substances with different mechanism of action and/or in combination with mechanical weeding. Treatments were planned in the main possible application timings, from the autumn period, in post-harvest to the early summer months. The product has proven, especially in spring/summer applications, to be able to effectively control both weeds and root suckers. The efficacy on the main dicots is good when the treatment is carried out at the early stages of development, with a few exceptions such as Potentilla reptans, which was not very susceptible. The activity on grasses was always total, even when they were more developed (autumn treatment). Extemporaneous mixtures with isoxaben and oxifluorfen allowed to extend the effect mainly on dicots in autumn treatments, just as favorable was the application of the product in spring, even following autumn tillage
Si riportano i risultati di 4 sperimentazioni di campo effettuate in Trentino nel triennio 2020- 2022 al fine di valutare l’efficacia e la selettività di un nuovo formulato erbicida, Ripper ® , a base di pyraflufen-etile + cletodim su melo. Il prodotto, costituito dalla miscela di due molecole già note e caratterizzate, è stato inserito in diverse strategie con sostanze attive a diverso meccanismo d’azione e/o in combinazione con il diserbo meccanico. Sono state previste applicazioni nelle principali finestre d’impiego possibili, dal periodo autunnale, in post-raccolta fino ai primi mesi estivi. Il prodotto ha dimostrato, soprattutto nelle applicazioni primaverili/estive di essere in grado di controllare efficacemente sia le infestanti, sia i polloni radicali. L’efficacia sulle principali dicotiledoni è buona quando il trattamento viene effettuato ai primi stadi di sviluppo, con poche eccezioni quale ad esempio Potentilla reptans che è risultata poco sensibile. L’azione sulle graminacee presenti è sempre stata totale, anche nei casi in cui queste erano maggiormente sviluppate (trattamento autunnale). Le miscele estemporanee con isoxaben e oxifluorfen hanno permesso di prolungare l’effetto soprattutto sulle dicotiledoni nei trattamenti autunnali così come è risultata favorevole l’applicazione del prodotto in primavera, anche a seguito di una lavorazione del terreno eseguita in autunno
Waldner, A.; Dallago, G. (2024). Valutazione dell’attività erbicida e spollonante di un nuovo formulato a base di pyraflufen etile+cletodim su melo. In: Giornate Fitopatologiche 2024: qualità delle piante, qualità, ambiente, Bologna, 12-15 marzo 2024: 301-310. handle: https://hdl.handle.net/10449/84538
Valutazione dell’attività erbicida e spollonante di un nuovo formulato a base di pyraflufen etile+cletodim su melo
Waldner, A.
Primo
;Dallago, G.Ultimo
2024-01-01
Abstract
We report the results of 4 field trials carried out in Trentino in the three-year period 2020- 2022 in order to evaluate the efficacy and selectivity of a new herbicide formulation, Ripper®, based on pyraflufen-ethyl + clethodim on apple trees. The product, a mixture of two already known and characterized herbicides, was included in different strategies with active substances with different mechanism of action and/or in combination with mechanical weeding. Treatments were planned in the main possible application timings, from the autumn period, in post-harvest to the early summer months. The product has proven, especially in spring/summer applications, to be able to effectively control both weeds and root suckers. The efficacy on the main dicots is good when the treatment is carried out at the early stages of development, with a few exceptions such as Potentilla reptans, which was not very susceptible. The activity on grasses was always total, even when they were more developed (autumn treatment). Extemporaneous mixtures with isoxaben and oxifluorfen allowed to extend the effect mainly on dicots in autumn treatments, just as favorable was the application of the product in spring, even following autumn tillageFile | Dimensione | Formato | |
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