Identification des chancres sur les espèces ligneuses ornementales produites en pépinière

Un chancre est une plaie qui se forme sur les branches ou les troncs, lorsqu’un agent pathogène (champignons ou bactéries) infecte et colonise les tissus cambiaux, ou lorsque des facteurs abiotiques (ex : le froid) endommagent les tissus ligneux. En pépinière ornementales les chancres entrainent assurément des pertes. L’objectif général du projet était d’optimiser le dépistage des chancres sur les espèces ligneuses ornementales produites en pépinière 1) En repérant et identifiant les chancres (en laboratoire) et leur hôte 2) En documentant visuellement les chancres 3) En décrivant les symptômes 4) En présentant les identifications lors d’une activité de démonstration pour ultimement permettre aux producteurs et aux intervenants de mieux les reconnaître et ainsi cibler les meilleures interventions à effectuer.

Evaluation of plant pathogens and their removal from greenhouse irrigation water by cost effective bioremediation and filter technologies ABP 0031

A comprehensive survey of plant pathogen populations (measured by DNA Multiscans) in irrigation water leachate and/or runoff from the range of Ontario flower and vegetable greenhouses and container nurseries was conducted to help assess the level of risk involved in operations switching to recirculating systems. The ability of several bioremediation technologies to remove plant pathogens from recycled irrigation water (e.g. constructed wetlands, woodchip biofilters) was evaluated as well as the effectiveness of current plant pathogen disinfection systems.

Best Management Practices for the Ontario Greenhouse and Container Nursery Industry to Protect Surface and Sub-surface Water Quality TOGA-OMAFRA Great Lakes Project 07-038)

The project objectives were to demonstrate the principles of collection, treatment, and reuse of irrigation runoff water in the greenhouse horticulture industry and develop and draft a. Existing treatment systems were monitored at three sites and new systems were installed and monitored at the seven sites. Irrigation water runoff and water at interim stages of each treatment system were monitored to determine their effectiveness. A Greenhouse and Container Nursery Water and Nutrient Management BMP document was drafted which formed the basis of the three individual OMAFRA BMP and self-assessment guides for greenhouse vegetable, container nursery, and greenhouse floriculture production.