To maintain and enhance environmental and health gains, this project will develop a strategy for biological control of the obliquebanded leafroller in orchards where mating disruption is being used against the codling moth.
The initial phase of the project will involve fine-tuning applications of the parasitoid Trichogramma minutum so that releases to control OBLR are uniform and cost effective.
In the second phase we will assess the obliquebanded leafroller populations in a number of Québec orchards.
In the third phase we will compare three strategies for controlling the obliquebanded leafroller that combine crop practices, a Bacillus thuringiensis var. kustaki (Bt) insecticide, and the inundative release of Trichogramma minutum into commercial orchards already using mating disruption against the codling moth.
From 2019 to 2022
Pest, weed, and disease control, Organic farming
Compared with insecticide applications, this method reduces the risks to human health and the environment.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Agro-Pomme
This project looks to incorporate the data for the recommended IFP berry products into the SAgE Pesticides database. The goal is to encourage farmers to adopt IFP and make it easier for them to access IFP data.
Researcher: Annabelle Firlej
IRDA drew up a list of insects and mites in Québec known to be or likely to become resistant to pesticides.
Exclusion nets have proven to be effective against nearly all of these insect pests, which means that it’s possible to develop apple growing practices in Québec that are not only neonicotinoid free, but also devoid of all pesticides (including acaricides, given that mite problems are a consequence of broad-spectrum insecticide use). Although the net exclusion microsystem studied in Québec since 2012 has demonstrated its effectiveness in controlling insect pests, some issues remain to be studied before it can be unreservedly recommended. Among these are the handling times for the nets, i.e., installation/removal and opening/closing, and the system’s profitability and durability over the long haul for various cultivars.
Researcher: Gérald Chouinard