Seasonal guide
Atlanta seasonal pest calendar
Atlanta’s long warm season stretches out pest activity. Use this calendar to time prevention: gutters before spring rain, exclusion before fall, termite vigilance during swarm season.
| Pest | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Termite swarmers | January: Low | February: Moderate | March: Peak | April: Peak | May: High | June: Moderate | July: Low | August: Low | September: Low | October: Low | November: Low | December: Low |
| Mosquitoes | January: Low | February: Low | March: Moderate | April: High | May: Peak | June: Peak | July: Peak | August: Peak | September: Peak | October: High | November: Moderate | December: Low |
| Ants (indoor trails) | January: Low | February: Moderate | March: High | April: Peak | May: Peak | June: Peak | July: Peak | August: Peak | September: High | October: Moderate | November: Low | December: Low |
| Fire ant mounds | January: Moderate | February: Moderate | March: High | April: Peak | May: High | June: High | July: Moderate | August: Moderate | September: High | October: Peak | November: High | December: Moderate |
| Outdoor roaches ("palmetto bugs") | January: Low | February: Low | March: Moderate | April: High | May: High | June: Peak | July: Peak | August: Peak | September: High | October: Moderate | November: Low | December: Low |
| German cockroaches (indoors) | January: High | February: High | March: High | April: High | May: Peak | June: Peak | July: Peak | August: Peak | September: Peak | October: High | November: High | December: High |
| Rodents moving indoors | January: Peak | February: High | March: Moderate | April: Moderate | May: Low | June: Low | July: Low | August: Moderate | September: Moderate | October: High | November: Peak | December: Peak |
| Ticks | January: Low | February: Moderate | March: High | April: Peak | May: Peak | June: Peak | July: High | August: High | September: High | October: Moderate | November: Moderate | December: Low |
| Wasps & yellowjackets | January: Low | February: Low | March: Moderate | April: Moderate | May: High | June: High | July: Peak | August: Peak | September: Peak | October: High | November: Low | December: Low |
| Fleas | January: Moderate | February: Moderate | March: Moderate | April: High | May: High | June: Peak | July: Peak | August: Peak | September: Peak | October: High | November: Moderate | December: Moderate |
| Occasional invaders (millipedes, stink bugs) | January: Low | February: Low | March: Moderate | April: Moderate | May: Moderate | June: Moderate | July: Moderate | August: Moderate | September: High | October: Peak | November: High | December: Low |
| Bed bugs (travel-driven) | January: High | February: High | March: High | April: High | May: High | June: Peak | July: Peak | August: Peak | September: High | October: High | November: High | December: High |
Cold snaps push mice and roof rats into attics and wall voids. A good month for exclusion work and crawl-space checks.
Activity levels are qualitative guidance based on pest biology and Atlanta’s climate, not measured counts. Weather in any given year shifts the timing.
Season by season
Spring (March–May)
Native termite swarms, ant trails, the first mosquitoes, ticks and fire ant mounds after rain. Termite swarmers · Mosquito season
Summer (June–August)
Peak mosquitoes, flying outdoor roaches on humid nights, growing yellowjacket colonies, and Argentine ants indoors in dry spells.
Fall (September–November)
Yellowjackets at their most defensive, millipede migrations, fire ant treatment timing, and rodents looking for shelter. Seal entry points.
Winter (December–February)
Rodents in attics and walls, German roaches indoors, and a good window for crawl-space and exclusion work.