Use of environmental niches to understand interactions among Botrytis cinerea, biocontrol agents, and the environment

Giorgia Fedele, Tito Caffi, Vittorio Rossi, Elisa Gonzalez Dominguez

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

The use of Integrated Pest Management (IPM) and of alternative approaches or techniques, such as non-chemical alternatives to pesticides, are promoted by Directive 2009/128/EC. Alternatives to chemical pesticides include biological control agents (BCA). Some commercial BCAs are available for the control of Botrytis bunch rot (BBR) on grapevines, caused by Botrytis cinerea, but their practical use is still limited. One likely reason is the inconsistent efficacy of BCAs under field conditions, which may be related to several factors, including the variability of the environmental conditions affecting both, BCA fitness and B. cinereadevelopment. The colonization rate and the efficacy of a specific BCA, as well as B. cinereagrowth and infection, are all influenced by weather conditions, such as temperature and moisture. To achieve an effective integration of BCAs in a disease management program is then relevant to know: i) the life cycle of both, the pathogen and the BCA; ii) the mode of action of the BCA against the target pathogen; and iii) how the two are influenced by the environment. The concept of “environmental niches” is proposed to understand how the environment influence the BCA-pathogen interaction. Environmental niches are defined as the environmental conditions necessary for the presence of a species and the maintenance of its population. In this work, this concept was used to study the temperature and humidity conditions under which different commercially BCA-based products prevails over B. cinerea, and to define the extent of environmental niche sharing between each BCA and the target pathogen.
Lingua originaleEnglish
Titolo della pubblicazione ospiteAbstract Book – Joint IOBC-WPRS Meeting of the Working Group – Integrated Protection in Viticulture
Pagine36
Numero di pagine1
Stato di pubblicazionePubblicato - 2019
EventoIOBC-WPRS Meeting of the Working Group – Integrated Protection in Viticulture - Vila Real, Portugal
Durata: 5 nov 20198 nov 2019

Convegno

ConvegnoIOBC-WPRS Meeting of the Working Group – Integrated Protection in Viticulture
CittàVila Real, Portugal
Periodo5/11/198/11/19

Keywords

  • Biological control
  • Botrytis bunch rot
  • Botrytis cinerea

Fingerprint

Entra nei temi di ricerca di 'Use of environmental niches to understand interactions among Botrytis cinerea, biocontrol agents, and the environment'. Insieme formano una fingerprint unica.

Cita questo