Concentration dynamics of SBI and QoI fungicides in sugar beet leaves

Vittorio Rossi, Luca Languasco, Pierluigi Meriggi, Francesca Moggi, Giancarlo Beltrami, Giangranco Maines

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

A three-year trial was carried out in order to study the long-term dynamics of foliar concentration of two fungicides belonging to the SBI (Sterol Biosysnthesis Inhibitor) and QoI (Quinone outside Inhibitor) groups, the most important active substances used in controlling Cercospora leaf spot. Fungicides were applied following the usual schedule, with three sprays per season at 20-day intervals. Foliar concentrations of both fungicides were tested after 1, 3, 9 and 18 days after application. Results showed that the foliar concentration of these substances changes according to fungicide characteristics, application time, time elapsed after distribution, and size of sugar beet canopy. These results suggest new approaches for applying fungicides to control Cercospora leaf spot epidemics.
Lingua originaleEnglish
Titolo della pubblicazione ospiteProceedings of the 69th IIRB Congress
Pagine269-277
Numero di pagine9
Stato di pubblicazionePubblicato - 2006
Evento69th IIRB Congress - Bruxelles, Belgium
Durata: 15 feb 200616 feb 2006

Convegno

Convegno69th IIRB Congress
CittàBruxelles, Belgium
Periodo15/2/0616/2/06

Keywords

  • Cercospora beticola
  • Foliar concentration
  • QoI
  • SBI

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