Seasonal phenology of Empoasca fabae (Hemiptera: Cicadellidae) in Quebec, Canada.

ABSTRACT: Climate change is reshaping insect population dynamics in North America, notably impacting the migratory pest Empoasca fabae (Harris) (Hemiptera: Cicadellidae). While its phenology is well studied in the United States, knowledge gaps exist regarding its dynamics in Eastern Canada, one of its northernmost migration areas. Our study integrates degree-day models, CLIMEX ecological niche modeling, and field-collected data from Québec to assess E. fabae seasonal phenology and monthly climatic suitability. Our results indicate that E. fabae completes one to two generations in Québec, with earlier emergence and higher generational potential in warmer southeastern regions compared to cooler northeastern regions. CLIMEX modeling showed that suitable climatic conditions for E. fabae growth begin in

SUBMITTER: Santos AA 

PROVIDER: S-EPMC12543320 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature