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

Drone
2017 • Market gardening

A study on the relationship between thermal imaging data collected by drone and agrometerological indicators of water stress in potato crops

The aim of this project was to study the relationship between thermal imaging data collected by drone and agrometerological indicators of water stress in potato crops.

Researcher: Carl Boivin

Read more about the project

Carl Boivin
Baby lettuce
2017-2018 • Market gardening

Multidisciplinary assessment of organic production systems for baby lettuce on muck soil

This project aims to assess the impact of cropping practices on baby lettuce yields and quality on muck soil.

Read more about the project

Caroline Côté
Annabelle Firlej
2018-2020 • Market gardening

Evaluating the effect of seeds coated with commercial, mycorrhizal fungi inoculum on the yields of nantes carrots grown in mineral soil early in the organic transition process

Test whether or not commercial strains coated on Nantes carrot seeds can compete with native strains in the soil to colonize the host plant and, once symbiosis takes place, whether they succeed in doing a better job than the native strains during the transition to organic farming.

Researcher: Christine Landry

Read more about the project

Christine Landry