Tree Trimming for Pest Exclusion

Cultural
Effectiveness:
Cost Level
Medium
Environmental Impact
Low
Resistance Risk
Low
Target Pests
5 species

Target Pests (3)

Common NameScientific NameCategory
Roof RatRattus rattusRodents
Carpenter AntCamponotus spp.Ants
Subterranean TermiteReticulitermes flavipesTermites

Application Method

Trim tree branches that touch or overhang building to eliminate wildlife and pest highways into structure. Cut branches back minimum 6-8 feet from roof, walls, and utility lines. Squirrels can jump 8-10 feet horizontally, so greater clearance needed in high-pressure areas. Remove climbing vines from building exterior. Cut back shrubs and plants touching foundation. For carpenter ants and termites, also remove branches overhanging roof creating shade and moisture conducive to wood damage. Proper tree trimming forces animals to climb building exterior to access roof, making exclusion work on building itself more effective. Also reduces shade and moisture on roof prolonging roof life.

Timing

Best performed in late winter before spring nesting season. Can be done year-round except during bird nesting season if active nests present in trimming area.

Frequency

Annual trimming in late winter. More frequent trimming needed for fast-growing trees or in high wildlife pressure areas. Inspect during each service visit.

Preparation Required

Inspect all trees near building to identify branches needing trimming. Plan cuts to maintain tree health. Have appropriate tools (pole saw, hand saw, pruning shears). Coordinate with customer or property manager.

Follow-up Required

Remove and dispose of trimmed branches - do not leave piled near building as pest harborage. Monitor tree growth and trim as needed to maintain clearance. Inspect building for new wildlife entry attempts now that trees trimmed.

Safety Precautions

  • Use proper tree trimming equipment and techniques
  • For large trees, hire certified arborist
  • Be aware of power lines when trimming
  • Dispose of trimmed branches promptly
  • Check for wildlife nests before trimming
  • Follow proper pruning techniques to avoid damaging trees
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.