What Are Elm Seed Bugs?
Elm seed bugs (Arocatus melanocephalus) are invasive insects that were first detected in Calgary in 2020. Originally from Europe, they feed exclusively on elm tree seeds and have rapidly spread throughout the city.
While they don't bite, sting, or cause structural damage, elm bugs become a significant nuisance when hundreds or thousands invade homes seeking winter shelter.
Peak invasion period: September - October
Calgary Elm Bug Lifecycle
Understanding their lifecycle helps us target treatment at the most effective times
Spring (April-May)
Adults emerge from overwintering sites. Begin feeding on elm seeds.
Summer (June-August)
Breeding season. Nymphs develop through 5 stages. Feed heavily on elm seeds.
Fall (September-October)
Adults seek indoor shelter as temperatures drop. PEAK INVASION PERIOD.
Winter (November-March)
Hibernate in wall voids, attics, and protected areas. Inactive but present.
Our 4-Step Treatment Process
Comprehensive approach to eliminate current infestations and prevent future invasions
Inspection & Assessment
Complete property inspection to identify infestation level, entry points, and harborage areas.
Exterior Perimeter Treatment
Application of residual insecticide to exterior walls, eaves, windows, doors, and foundation.
Entry Point Sealing
Seal cracks, gaps, and openings where bugs enter. Focus on windows, doors, vents, and siding.
Interior Treatment (if needed)
Targeted treatment of wall voids, attics, and areas with active infestations.
Why DIY Doesn't Work for Elm Bugs
Overwhelming Numbers
Thousands of bugs can invade a single property. DIY products can't treat at this scale.
Hidden Harborage
Bugs hide in wall voids and attics where DIY sprays can't reach.
Temporary Relief Only
Without proper exclusion, new bugs continue entering.
Professional Treatment Benefits
Complete Elimination
Professional-grade products eliminate entire populations.
Proper Exclusion
We seal entry points to prevent re-infestation.
Long-Term Prevention
Residual protection prevents future invasions.
Guaranteed Results
100% satisfaction guarantee or we re-treat for free.