Research Objective

• Evaluate different seeding rates and management options to maximize plant recovery using current canola cultivars
• Evaluate the effects on stem damage and defoliation of different flea beetle species on stem feeding in both lab and field conditions
• Construct a predictive model for flea beetle abundance and damage to canola

Project Description

Flea beetles are one of the major pests to canola in Western Canada and increase the overall cost of production. This project proposes to study how plant density affects plant recovery from flea beetle damage, as well as what conditions encourage flea beetles and the damage they can cause. Seeding rates will be found that best help a damaged plant to recover and thus decrease input costs of foliar insecticide sprays. Based on this research, the study will also notice the effects of ground pests, leaf pests, and defoliation of the canola crop on flea beetle populations. All of the research in this study will be put together to adjust predictive models for the flea beetle abundance and damage to canola, adjusting for predators, landscape effects, and abiotic factors that will be studied across the 4 eco-regions of the Prairie provinces. It will build on previous CARP projects related to flea beetles and Lygus bugs. The involvement of growers and sampling for several pest species in the growers' field will maximize the project benefits with on-farm experiments.