Keyport'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. Effectiveness depends on more than just your own property, which is why we ask about neighboring water sources during the initial call.

Barrier product follows label guidelines for residential use — we'll note anything needing special handling.

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

Water features need a different approach — larvicide — because spray only affects adults, not larvae. 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.