Blueprint: The modern pest blog by APC Exterminators

  Abstract Winnipeg, Manitoba experiences one of the most severe freeze-thaw cycles in North America, with frost penetration reaching depths of 1.7 to 2.16 meters in Lake Agassiz clay soils. This research examines the correlation between spring thaw events, subsequent soil saturation, and the temporal pattern of carpenter ant ( Camponotus spp.) infestations in residential foundations. During the spring thaw period (late March through May), impermeable frozen subsoil creates a perched water table condition that saturates the upper 15-45 cm of soil, forcing subterranean ant colonies to migrate vertically into structures to escape waterlogged nests. Analysis of meteorological data from Environment and Climate Change Canada, combined with soil hydrology research from the National Research Council, reveals that the combination of ice lens formation during winter, rapid surface thaw, and clay soil impermeability creates predictable conditions that drive ant populations into foundations...

  Abstract This technical review examines the comparative susceptibility of common residential insulation materials - spray foam, fiberglass, and cellulose to pest infestation within Canadian climate zones. The analysis evaluates thermal performance characteristics, structural integrity, and pest resistance properties of each material, with particular emphasis on rodent and insect penetration. Findings indicate that while no insulation material provides absolute pest-proofing, significant differences exist in material vulnerability and effectiveness when integrated with comprehensive building envelope strategies. This review synthesizes current research and field data to inform material selection for new construction and renovation projects in Canadian climatic conditions. Introduction Background and Significance Canada's diverse climatic zones, ranging from temperate coastal regions to severe continental and arctic conditions, present unique challenges for building envelope de...