Tawny Crazy Ants Spread Across Mississippi Counties
The invasive species has expanded its reach to seven counties across the state since its initial arrival in 2009.
Updated on Oct. 6, 2026 in Landscaping
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Tawny crazy ants, known scientifically as Nylanderia fulva, have expanded their presence into seven Mississippi counties as of 2026. This invasive species continues to challenge local landscaping management efforts due to its ability to nest in debris and damage electrical equipment.
Why it matters
The continued spread of these ants complicates property maintenance because the species does not form typical trails, making infestations difficult to identify and manage. Because they are unlikely to be fully eradicated once established, property owners must rely on professional pest control services.
The species now occupies seven Mississippi counties, marking a significant expansion from the original site identified in Hancock County in 2009. These ants were first documented in the United States in 1931.
The players
MSU Extension Insect Identification Lab
This facility serves as the primary resource for the public to submit physical specimens for professional confirmation of insect species.
The details
Tawny crazy ants are known for nesting under items like rocks, leaf litter, firewood, and fallen limbs. While the insects are capable of shorting out electrical equipment, they do not sting and bite only minimally.
Timeline
1931: The species was first documented in the United States.
2009: Hancock County became the first location to identify the ants in Mississippi.
2026: The ants expanded into Wilkinson, Marion, and Perry counties.
Culture Shift
The spread of Nylanderia fulva across the state reflects a shift toward more invasive pest management challenges in Southern landscapes. This trend marks a departure from the previous 15-year period where the species remained largely contained within its initial range.
Residents should check for nests under leaf litter, firewood, or rocks to prevent the ants from accessing and damaging outdoor electrical equipment. If an infestation is suspected, property owners can submit physical samples to professional labs to confirm the species.
The takeaway
Property owners should remain vigilant regarding debris piles where these ants are known to congregate. Professional treatment remains the most reliable method for managing established colonies.
Further reading
Learn more about local property maintenance and pest management on the Mississippi Landscaping page.
More information
To submit a specimen for testing, visit the MSU Extension Insect Identification Lab portal.
Source note: This article includes information reported by Msstate.
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