Inverness Highlands North's Seasonal Barrier Treatment Team

Residual barrier typically holds about three weeks before new activity requires re-treatment.

A complete job includes both perimeter spray and treatment of any breeding sources found. A single missed water source nearby can shorten how long a barrier treatment stays effective, so we always ask about the whole surrounding area, not just the yard itself.

We use products labeled safe for treated areas once dry, and flag any specific concerns during scheduling.

Yes — we schedule timing a day or two before the event for maximum effect on the actual date.

Ponds usually need larvicide rather than barrier spray, since spray doesn't reach larvae developing in water. A few landscaping adjustments between visits can meaningfully extend how long a barrier treatment stays effective.

A three-week cycle is typical, though heavier rain sometimes calls for tighter scheduling. We recommend a yard check after heavy rain, since new standing water shows up in unexpected places.