This study examines the seasonal activity of the potato leafhopper in Québec, Canada, using field data and modeling. Researchers combined degree-day models and ecological niche modeling to understand the insect's phenology. The study reveals that potato leafhoppers can complete one to two generations in Québec, with southeastern regions being more favorable for reproduction. Climatic suitability peaks from May to September, and adult populations peak in June and July. Observed adult peaks occur earlier than predicted, and additional factors like wind and host plant availability likely affect population dynamics. The findings provide insights into potato leafhopper phenology, which could be used to forecast population trends and manage pests.
