Spider and Occasional Invader Control

Spiders, camel crickets, boxelder bugs, brown marmorated stink bugs, and cluster flies are perimeter and cavity pests, not interior ones, so treatment is built around exclusion plus a targeted exterior application. Stink bugs and cluster flies move to sunny south and west walls in late September and October, then enter through window frames, attic vents, and behind siding — which means exclusion work should be scheduled by early September to be useful. Camel crickets are a crawlspace humidity problem common in older Arnold homes near the water; service names the moisture and vent conditions feeding them instead of treating the same basement corner every year.