Nuove conoscenze sul ciclo biologico di Stemphylium vesicarium e possibilità di contenimento della maculatura bruna del pero

Elisabetta Pattori, Silvia Cavagna, Vittorio Rossi

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

Abstract

Recent works showed that Stemphylium vesicarium, the causal agent of brown spot of pear, is able to colonize the herb plants of the lawn covering the orchard soil in a permanent manner. The fungus growths on the dead leaves of these plants as saprophyte and produces conidia from spring to autumn, and pseudothecia and ascospores of Pleospora allii from autumn to spring, more abundantly than on the pear leaf litter. Considering that S. vesicarium does not produce spores on the affected pear tissue, the orchard floor (pear leaf residues and dead herb plants) is then the inoculum source for both ascospores and conidia all season long. Recent works have then evaluated the possibility of reducing disease incidence by sanitation. The application of Trichoderma-based products on the orchard floor significantly reduces production of both ascospores and conidia as well as disease incidence on pear fruit. Use of Trichoderma opens new perspectives for controlling brown spot of pear, in addition to fungicide sprays to increase their efficacy when the disease pressure is high and in organic farming.
Titolo tradotto del contributo[Autom. eng. transl.] New knowledge on the biological cycle of Stemphylium vesicarium and the possibility of containing the brown spot of the pear tree
Lingua originaleItalian
pagine (da-a)10-16
Numero di pagine7
RivistaPROTEZIONE DELLE COLTURE
Stato di pubblicazionePubblicato - 2008

Keywords

  • Pleospora allii
  • Trichoderma
  • cotico erboso
  • riduzione inoculo
  • trattamenti estintivi

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