There is very little documentation on the link between the number of spotted wing drosophila captured in traps and berry crop damage and associated economic losses. The aim of this project was to gather the necessary data to determine whether trap captures can predict damage levels and yield losses in the field. Traps were installed for two years in five raspberry fields in Québec. Numbers of adults in the traps and larva in the fruit, as well as yield losses and the percentage of undamaged fruit were evaluated every week during the harvest season.
From 2015 to 2017
Pest, weed, and disease control, Organic farming
IRDA boasts considerable expertise in the fight against new invasive insects.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec - Prime-vert Programme
Research report • Annabelle FirlejFirlej, A., C. Lacroix, E. Lefrançois, M. Grenier. 2018. Étude du lien entre les populations de drosophiles à ailes tachetées et les dommages et pertes de rendement à la culture. IRDA. 12 p. Firlej, A., C. Lacroix, E. Lefrançois, M. Grenier. 2018. Étude du lien entre les populations de drosophiles à ailes tachetées et les dommages et pertes de rendement à la culture. IRDA. 12 p. Download Download
The aim of this project was to test the general hypothesis that exclusion nets, when properly used, can prevent attacks by most apple pests and reduce disease incidence with no major adverse effects on fruit quality.
Researcher: Gérald Chouinard
The aim of our project was to increase the acreage on which mating disruption is used against the codling moth in all of Québec’s apple-growing regions.
Researcher: Daniel Cormier
Flexible management of nitrogen fertilization (fertilizer type and dose) as a function of temperature for better yields in organic cranberry production.
Researcher: Christine Landry