Reapply outdoor ant granules whenever the product loses effectiveness after rain or over time to keep a continuous perimeter barrier.

For most granular ant baits and barrier products we recommend checking and reapplying every two to four weeks during active ant season, but always follow the specific product label for exact timing and safety details. After any moderate to heavy rainfall you should treat the perimeter again because water washes granules into soil and reduces surface availability to foraging ants. Apply granules in a continuous band around foundations, focusing on gaps, utility entries, and vegetation that touches the structure, keeping a clear two to four inch buffer so granules do not blow into planting beds. Use a handheld spreader for even application and avoid over applying near flower beds to protect beneficial insects; if you must treat close to plants, sweep granules back into the soil line where ants travel. Monitor activity weekly by placing a small amount of sugar and protein bait at known trails to see if ants are still foraging and adjust reapplication frequency based on those observations. If you see a sudden increase in activity, supplement granules with a targeted spot spray labeled for outdoor use around entry points, applied in the evening when ants are most active.

Common mistakes include waiting until ant numbers are visible inside the building which allows colonies to establish and requires more intensive treatment, so start perimeter maintenance early in the season and reapply proactively. Another frequent error is failing to read and follow product label instructions which can lead to under dosing or unsafe placement, so always check application rate, reentry intervals, and environmental precautions before applying. A third issue is treating only flat ground and ignoring vegetation and cracks where ants travel, which allows pathways to remain open, so treat along landscaping edges, trim plants away from structures, and fill obvious cracks to maintain an unbroken barrier.

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