This project aimed to develop weather-based predictive models for two important canola pests, stripped flea beetles, (Phyllotreta striolata (Fab.)) and crucifer flea beetles (Phyllotreta cruciferae (Goeze)). We used field surveys for local phenology, laboratory bioassays to study developmental biology in response to temperature, and species competition. Our data and model results indicate the adult emergence for striped beetles can peak between 150–200 degree days using 8°C temperature base, while adult activity of crucifer flea beetle will likely peak between 125-200 degree-days using a 11°C base temperature.

Integrated Pest Management CEUs: 0.5