Part 1: Impact assessment of the duration of exposure to environmental conditions and predation of two cohorts of trichogramma released in bulk
Part 2: Evaluating two bulk trichogramma releases by drone
Four replicates of the three treatments in a randomized complete block design were established on 0.2 ha plots at least 150 m apart.
Part 3: On four farms, two of which are organic, the most effective release strategy based on the results of Part 2 were compared with an untreated control. Four replicates of the three treatments in a randomized complete block design were established on 3 ha plots (0.5 ha plots for the controls) at least 150 m apart. The following parameters were measured: trichogramma quality, number of male corn borers captured in the traps, number and GPS coordinates of corn borer eggs and sentinel eggs on the plants, trichogramma parasitism and emergence rates, and crop damage.
Part 4: Economic analysis comparing control strategies (insecticides, Trico cards, and trichogramma releases by drone)
From 2016 to 2018
Pest, weed, and disease control
This project will encourage growers to adopt biological control methods to deal with the corn borer and, in doing so, lead to reduced pesticide use.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec - Programme de développement sectoriel
This project aims to develop an accessible and user-friendly web application that will let stakeholders search the IRDA potato soil database, one of the largest in Canada, to visualize the impact of growing practices and protocols on the biological, physicochemical, and agronomic characteristics of soils cultivated with different cropping systems.
Researcher: Richard Hogue
This project will provide 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.
Managing potato residues is therefore a big challenge, which will only increase with the enforcement of the Québec Residual Materials Waste Management Policy.
Researcher: Christine Landry