In highbush blueberry fields where stunt disease has been detected, plants that have never received nitrogen fertilizer are more vigorous and homogeneous than plants that have received nitrogen fertilizer. The purpose of the exercise was to learn more about the productivity (fruit yield) of these plants, which do not appear to be affected by this pathogen.
From 2015 to 2016
Fertilizer management, Pest, weed, and disease control
At its blueberry farm (not open for pick-your-own) IRDA conducts a number of projects that benefit the sector.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec - Programme d’appui au développement et à l’adaptation de l’agriculture et de l’agroalimentaire en région
The aim of the project was to determine whether the witches’ broom symptom on blueberries is really caused by the rust Pucciniastrum geopertianum, which attacks balsam.
Researcher: Richard Hogue
Evaluate the toxicity of biological pesticides or repellents to control the spotted wing drosophila on everbearing raspberries grown in tunnels.
Researcher: Daniel Cormier
IRDA drew up a list of insects and mites in Québec known to be or likely to become resistant to pesticides.