Castaic'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.

Event treatment is common; we time application to peak effectiveness for your date.

Water features need a different approach — larvicide — because spray only affects adults, not larvae. We can also advise on simple landscaping changes — trimming dense shrubs, thinning standing vegetation — that reduce resting habitat between visits.

A three-week cycle is typical, though heavier rain sometimes calls for tighter scheduling. It also helps to check for new containers holding water after storms, since a single overturned bucket restarts breeding fast.