Ant Invasions in the Inland Empire

Riverside and San Bernardino counties, with their warm, dry climate, provide ideal conditions for a variety of ant species. These tiny invaders can quickly become a nuisance, foraging for food and establishing colonies in and around homes and businesses. Understanding the common ant species in the Inland Empire, their behavior, diet, and potential dangers is crucial for effective prevention and control.

Common Ant Species in the Inland Empire

Several ant species are frequently encountered in Riverside and San Bernardino counties:

• Argentine Ants (Linepithema humile): These are perhaps the most pervasive ant species in the region. They are small (⅛ inch), light to dark brown, and form large, interconnected colonies. They are highly adaptable and can displace native ant species.
• Odorous House Ants (Tapinoma sessile): These small (⅛ inch), dark brown or black ants emit a foul, musty odor when crushed. They are attracted to sweet foods and moisture and often nest in wall voids and under floors.
• Pavement Ants (Tetramorium caespitum): These small (⅛ inch), dark brown to black ants nest in cracks in pavement, sidewalks, and foundations. They are known for creating small mounds of excavated soil.
• Red Imported Fire Ants (Solenopsis invicta): While not as widespread as other species, fire ants are a significant concern due to their painful stings. They are reddish-brown and build characteristic mounds in open areas.

Ant Behavior and Diet

Ants are social insects that live in colonies with a complex social structure. They have distinct roles, with workers foraging for food, soldiers defending the colony, and a queen responsible for reproduction.

• Foraging Behavior: Ants are constantly searching for food and water. They leave scent trails to guide other workers to food sources. This explains why you often see long trails of ants marching through your home.
• Dietary Preferences: Different ant species have different dietary preferences. Argentine ants and odorous house ants are particularly attracted to sweets, while pavement ants prefer a more varied diet, including insects, seeds, and honeydew. Fire ants are omnivorous and will feed on insects, seeds, and even small animals.

Dangers to Pets and People

While most ants are primarily a nuisance, some species pose health risks:

• Contamination of Food: Ants can contaminate food with bacteria and pathogens they pick up while foraging. This can lead to food poisoning and other gastrointestinal illnesses.
• Allergic Reactions: Some people are allergic to ant bites or stings, which can cause localized swelling, itching, and redness. In rare cases, severe allergic reactions (anaphylaxis) can occur, requiring immediate medical attention.
• Fire Ant Stings: Fire ant stings are particularly painful and can cause pustules that can become infected. Multiple stings can be dangerous, especially for small children, the elderly, and people with allergies.
• Structural Damage (Indirect): While ants don’t directly cause significant structural damage like termites, some species, such as carpenter ants (less common in the Inland Empire but worth mentioning), can nest in wood, potentially weakening structures over time. However, this is less of a concern with the species listed above.

Preventing Ant Infestations

Preventing ant infestations requires eliminating their access to food, water, and shelter:

• Seal Entry Points: Caulk cracks and crevices in walls, foundations, windows, and doors.
• Maintain Cleanliness: Keep kitchens and dining areas clean, promptly clean up spills, and store food in airtight containers.
• Manage Moisture: Fix leaky pipes and faucets. Ensure proper drainage around the property.
• Proper Food Storage: Store pet food and other potential food sources in sealed containers.
• Landscaping Practices: Trim vegetation away from the house and remove debris that could provide harborage for ants.

If an ant infestation occurs on your residential or commercial property, contact us at 909-335-1486 or email us at info@craigandsons.com. By understanding the behavior and habits of common ants in the Inland Empire we can effectively remove these pests.