Impact of composite hedges on natural enemies and pollinators in an organic polyculture system in Québec

Description

This two-year project was conducted on an organic polyculture farm in southern Québec (Ferme des Quatre-Temps).

The first stage of the project focused on describing the polyculture system and how the hedges are planted and maintained. Interactions between the polyculture and the hedges were studied, based on the insects associated with crops in the cabbage family. Insects were sampled on plots to check for parasitism of immature pest stages (caterpillers and pupa) on the crops and in adjacent hedges to determine what natural enemies and pollinators use them as a refuge. This data was used to identify the plant species most used by natural enemies and pollinators. The project also looked at the economic aspects of planting recommended species and the economic benefits of various control strategies for Lepidopteran pests of the cabbage family.

Objective(s)

  • Get a better understanding of interactions between a vegetable polyculture system and hedges composed of shrubs and perennials in order to enhance the impact of beneficial insects on vegetable crops in Québec
  • Analyze the cost of planting and maintaining the hedges and conduct a comparative cost study of various pest control strategies
  • Produce a technical leaflet on how to conserve and increase biodiversity in farming areas, especially for the growing number of organic vegetable farms

From 2017 to 2018

Project duration

Market gardening

Activity areas

Pest, weed, and disease control, Ecosystem protection

Services

Farmers who implement the actions recommended in this project will be contributing to the preservation and enhancement of agricultural biodiversity.

Partners

Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Ferme des Quatre-Temps | Écomestible agriculteurs-paysagistes

This may interest you

Potato plants
2014-2017 • Market gardening

Biological characterization of soils to increase potato productivity and soil sustainability

To increase the productivity of potato production systems and preserve soil quality, we need to enhance our knowledge of interactions among biological, physical, chemical, and agronomic characteristics of cultivated soils in various environments.

Researcher: Richard Hogue

Read more about the project

Richard Hogue
Swede
2017-2018 • Market gardening

Field trials on swede midge mating disruption

This project will compare the ability of various pheromone mixes to prevent male swede midges from locating females.

Read more about the project

Potato field
2019-2022 • Market gardening

Developing a soil microbiome monitoring method to select potato crop management practices that reduce soil-borne pathogens and pesticide applications

Method to monitor and control telluric pathogens affecting potatoes that takes into account the interactions between these pathogens and other soil microbiome organisms.

Researchers: Richard Hogue Luc Belzile

Read more about the project

Richard Hogue
Luc Belzile