Fire Ant Season in Jacksonville: What Dog Owners Need to Know

Seasonal Guide · 5 min read

Fire ant activity in Florida peaks in May and June, stays active from May through September, and colonies can grow to 100,000-500,000 workers by the height of summer. For Jacksonville dog owners, that six-month window overlaps almost exactly with the time of year dogs spend the most time outside.

Why Dogs Are Especially at Risk

Dogs typically get stung on the paws, face, and nose — the parts of them that make first contact when they're sniffing around a mound or standing on disturbed soil without realizing it. A curious dog investigating a fresh mound can end up with dozens of stings in seconds, since fire ants swarm and sting repeatedly rather than just once.

Rain Makes Mounds More Visible — and More Dangerous

Mounds tend to become more visible after rain, when ants push soil up and rebuild closer to the surface. Jacksonville's summer rain pattern — frequent afternoon storms from roughly May through September — means mound activity and visibility often spike right alongside it. A yard that looked clear a week ago can have new, active mounds after a heavy rain.

The Waste Removal Connection

Here's the part most yard-safety checklists skip: a yard that's checked regularly for dog waste is also a yard that gets walked and inspected regularly. Weekly waste removal means somewhere is looking at every part of the lawn — under trees, along the fence line, near the shed — often enough to catch a new mound before a dog finds it the hard way. A yard that only gets attention sporadically is a yard where a fresh mound can sit undetected for days.

What to Do If You Spot a Mound

• Keep dogs away from the area until it's treated — mark it if needed so kids and pets both steer clear.
• Treat mounds directly with a product labeled for fire ants, following label instructions, or use a broadcast bait treatment for larger yards with multiple mounds.
• Re-check the yard after rain. New mounds can appear within days of a storm, especially during peak season.
• Watch for a reaction after any sting. Most dogs recover from a few stings with mild swelling, but multiple stings or any sign of a severe reaction (facial swelling, difficulty breathing, vomiting) warrants a call to your vet right away.

Building It Into Your Routine

Fire ant season isn't something to check once and forget — it runs half the year in Florida. Pairing mound checks with a regular yard-waste routine means the yard gets eyes on it consistently, not just when someone happens to notice a problem.

Get your first cleanup free and let us help keep an eye on your yard on our quote page.