Biodiversity studies

Études sur la biodiversité

In 1982, when our winemaker Charles-Henri de Coussergues planted his first vines, we found ourselves in a very rich environment in terms of biodiversity as well as a generous population of very diverse insects. At that time, there were few documents concerning viticulture in Quebec. To tame this environment, our information came from guides in Ontario, New York State and Europe.

In 1997, he met the late Victor Dietrich, Jacques Lasnier, Noubar Bostanian and Charles Vincent. Shortly after, the first formal research project in viticulture began. This project, in partnership with Agriculture Canada, Ag-Cord Inc., the Dietrich-Jooss vineyard and the Orpailleur vineyard, concerned the identification and behavior of insects in our vineyards.

We quickly benefited from positive spin-offs, so that several research projects followed, once again with appreciable gains in productivity and environmental sustainability. Thanks to this sustained and long-standing collaboration, we apply few insecticides and no acaricides due to the natural enemy conservation program. For example, the conservation of the predator Anystis has meant that for 30 years now, we have drastically reduced to finally completely stop insecticide treatments.

Anystis Predator

Anystis Predator

Today, thanks to the fruit of this research in entomology, we are not only able to clearly identify these insects that can potentially harm yields, but we are also able to identify and protect their natural enemies which will reduce the population of insects. harmful. This also allows us in many cases to assess the possible percentage of crop loss which often will be so minimal that it does not justify human intervention.

Our winemaker raises his glass to this partnership between producers and researchers, to the results obtained and also to come. Long life to our viticulture!

The studies

Study of the dynamics of vine insect pests

1997-2007 | Study of the inventory and dynamics of vine insect pests in southwestern Quebec.

In order to build a pest control program based on good integrated pest management practices adapted to the climatic conditions of Quebec, this study was undertaken to determine the presence and abundance of arthropod pests and their natural enemies in two vineyards. business in southern Quebec. Report of the study: Viticulture in Quebec volume 1

Collaborators: Charles Vincent, Jacques Lasnier- Co-Lab Research and Development, Center for Research and Development in Horticulture Agriculture and Agri-Food Canada and Vignoble de l'Orpailleur

  • 1997 - 2000 | Phase 1: Laying traps, harvesting and inventorying all arthropods. Five entomologists identified the inventoried fauna.
  • 2001 - 2004 | Phase 2 : Identification of natural enemies.
  • 2005 - 2007 | Phase 3 : Study of natural enemies and insect pests.

2001-2007 | Study of the inventory and dynamics of vine pest diseases in southwestern Quebec.

Collaborators: Odile Carisse - Agriculture and Agri-Food Canada, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

  • 2001-2004 | Phase 1 : xxx
  • 2005-2007 | Phase 2 : xxx

This study contributed to the creation of two guides:

  1. " Identification Guide to the Main Grapevine Diseases " which aims to help winegrowers and advisers to properly recognize the diseases that attack grapevines in Eastern Canada.
  2. " Reasoned management of the main vine diseases in Quebec ", the objective of which is to help stakeholders and producers manage these diseases rationally while respecting the environment.

2008-2010 | Study of the dynamics of fungal disease caused by Botrytis cinerea in grapevine in southwestern Quebec.

Having identified vine diseases, we wanted to better understand the dynamics of Botrytis cinerea. When do fungus spores emerge? We found that the spore is latent in the flower and to develop it waits for certain conditions to be met: water, an increase in PH, a drop in acidity and the sugar level which increases.

Collaborators: Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

2007-2010 | Identify the symptoms and inventory the diseases of vine yellows and the potential risks of its development on 7 wine grape varieties in southwestern Quebec.

Description

Collaborators: Dr. Christelle Olivier - Agriculture Canada, Dr. Charles Vincent, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

Predatory mite Anystis baccarum

2010-2012 | Study of the dynamics of the predatory mite Anystis baccarum and its impact on grapevine pest populations in southwestern Quebec.

Description

Collaborators: Dr Charles Vincent, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

2013-2015 | Study of the prevalence and diversity of phytoplasmas and the possible transmission by leafhoppers.

Description

Collaborators: Dr. Christelle Olivier - Agriculture Canada, Dr. Charles Vincent, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

2013-2016 | Study of the biodynamics of Drosophila suzukii populations.

Description

Collaborators: Agriculture Canada, Dr. Charles Vincent, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

Dynamic Tachinidae Istocheta Aldrichii

2017-2021 | Study of the dynamics of the Tachinidae fly Istocheta aldrichii, a parasite of the Japanese beetle.

Description

Collaborators: Dr Charles Vincent, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

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2018-2020 | Study of two winter protection devices.

Collaborators: Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

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2018-2024 | Simultaneous detection of grapevine virome and biotic and abiotic factors of virus symptoms in grapevine.

Collaborators: Dr Mamadou Fall, Agriculture Canada, Jacques Lasnier - Co-Lab Research and Development, Vignoble de l'Orpailleur

Sources

PHYTOMA. 2016. “Evolution of Quebec viticulture over the past thirty years”. Online. < https://www.agrireseau.net/documents/Document_96326.pdf >.

Agriculture and Agri-Food Canada Technical Bulletin. 2019. “ Guide to the Principal Arthropods of Eastern Canadian Vineyards.” Online. < https://publications.gc.ca/collections/collection_2019/aac-aafc/A59-72-2019-eng.pdf >.

 Vincent, C., J. Lasnier and NJ Bostanian 2002 (eds.). Viticulture in Quebec. Technical Bulletin, 42 p. (Reports of a workshop held in St-Rémi, Quebec - December 4, 2002).

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